Got call from extremely angry customer, our product is shit and doesn't work. At all. Important customer so I went to visit.

He had the perfect setup, our product to the left, our competitor's to the right.

He connected the Ethernet cable to their product, it worked. He plugged it out and connected to ours... Nothing. Shit.

I started to debug on the premises, took logs, everything. It seemed like our product didn't receive any data at all. What the fuck? Tried everything, debugged low level, still nothing. Sweating as hell.

After two hours I got a strange feeling. So I swapped place, our product to the right, competitor's to the left. Now OUR product worked, competitor's zilch.

THE FUCKING ETHERNET CABLE HAD A GLITCH. IF YOU BENT IT TO THE RIGHT IT WORKED, IF YOU BENT IT TO THE LEFT IT WAS BROKEN.

I had never seen a customer be this embarrassed in my life. He apologized to me, my boss, his boss, the Queen, everyone.

We got the contract.

Next time I try to install a server, I should check if the Ethernet cable is not broken.

😐

My girlfriends mom asked whether I could fix her coworkers laptop. She claimed that it had viruses installed and laptop is laggy..

So... I got that laptop just now, got home and turned it on. It doesn't have WiFi drivers installed and I do not have any free Ethernet cable right now.

About the lags... Well you won't believe how many custom tool bars and security programs there were. McAffe, AVG, ESET and some Russian made firewall which asks for license key every 5mins.

And she asked me to reinstall windows and keep every file of hers, and she didn't bother to point which files of 300gb of photos/videos/docs are worth keeping and which are not.. HDD is 300GB :A fuck me

P. S. Since it's my first rant I can say ranting helps a lot to calm down

Hello everyone, found this place recently, decided to bore you with one (or many) Navy story... tech Navy story. I'll start from the end.
Little backstory: I've deployed a simple domain setup on the ship I served, nothing fancy, a server, a switch, 10 computers, all Windows (details on that at another rant). I enter the ship Monday morning, and the XO tells me that he can't access his online folders.
OK, I say, I'll get to it. I fire up my laptop, try to RDP to the server (I know, I know, burn me at the stake later) no connection. WTF? Is the service down? I try pinging. No luck. I tried pinging the switch. OK. Looking at the switch admin panel, I see the server's port is dead. "OK, probably the cable." (we have old ethernet cables)
So, I drag my ass over to the server (same room with ship comms) with the cable tester to confirm that. What do I see?
The IMBECILES had pulled the plug from the server so that they could charge their mobile phones. I literally slammed my head against the door (calming exercise in case of spontaneous murder impulses - the things you learn at the Academy). My CO was nearby, and lucky for the guys, he heard me yell at them, while throwing mobiles and chargers around.
"But we thought it was OK, we just wanted to charge our-"
I kid you not, I reached for the firefighter's axe.
My CO grabbed me by the collar and dragged me to his room. I explained to him (between two cigarettes) that we MUST get a UPS and a server cabinet (budget constraints in the military are something that will give you people nightmares, trust me). I carefully explained to him that unless we got those, nothing would prevent the next moron from destroying confidential data and me from murdering him.
I plugged in and booted the server, after installing a multi socket extension. Two days after, surprise surprise, the server was off again. That was the first time I opened the door to the CO's room with a low kick. I must have looked like a psycho on drugs, he gave approval for the purchase in twenty seconds flat.
After that, I installed the UPS and the cabinet. Everything went inside, from the UPS to the very plugs. Just a locked box with cables coming out.
One of the guys came to my room, and asked if I could unlock the cabinet so that they could plug a "device" they needed.
I actually reached for my folding knife.
Disclaimer: The story above is TRUE. Even the almost violent parts.

Navy story time, and this one is lengthy.
As a Lieutenant Jr. I served for a year on a large (>100m) ship, with the duties of assistant navigation officer, and of course, unofficial computer guy. When I first entered the ship (carrying my trusty laptop), I had to wait for 2 hours at the officer's wardroom... where I noticed an ethernet plug. After 15 minutes of waiting, I got bored. Like, really bored. What on TCP/IP could possibly go wrong?
So, scanning the network it is. Besides the usual security holes I came to expect in ""military secure networks"" (Windows XP SP2 unpatched and Windows 2003 Servers, also unpatched) I came along a variety of interesting computers with interesting things... that I cannot name. The aggressive scan also crashed the SMB service on the server causing no end of cute reactions, until I restarted it remotely.
But me and my big mouth... I actually talked about it with the ship's CO and the electronics officer, and promptly got the unofficial duty of computer guy, aka helldesk, technical support and I-try-to-explain-you-that-it-is-impossible-given-my-resources guy. I seriously think that this was their punishment for me messing around. At one time I received a call, that a certain PC was disconnected. I repeatedly told them to look if the ethernet cable was on. "Yes, of course it's on, I am not an idiot." (yea, right)
So I went to that room, 4 decks down and 3 sections aft. Just to push in the half-popped out ethernet jack. I would swear it was on purpose, but reality showed me I was wrong, oh so dead wrong.
For the full year of my commission, I kept pestering the CO to assign me with an assistant to teach them, and to give approval for some serious upgrades, patching and documenting. No good.
I set up some little things to get them interested, like some NMEA relays and installed navigation software on certain computers, re-enabled the server's webmail and patched the server itself, tried to clean the malware (aka. Sisyphus' rock), and tried to enforce a security policy. I also tried to convince the CO to install a document management system, to his utter horror and refusal (he was the hard copy type, as were most officers in the ship). I gave up on almost all besides the assistant thing, because I knew that once I left, everything would go to the high-entropy status of carrying papers around, but the CO kept telling me that would be unnecessary.
"You'll always be our man, you'll fix it (sic)".
What could go wrong?
I got my transfer with 1 week's notice. Panic struck. The CO was... well, he was less shocked than I expected, but still shocked (I learned later that he knew beforehand, but decided not to tell anybody anything). So came the most rediculous request of all:
To put down, within 1 A4 sheet, and in simple instructions, the things one had to do in order to fulfil the duties of the computer guy.
I. SHIT. YOU. NOT.
My answer:
"What I can do is write: 'Please read the following:', followed by the list of books one must read in order to get some introductory understanding of network and server management, with most accompanying skills."
I was so glad I got out of that hellhole.

My router is behind my bed so I have an Ethernet cable running through the house from my computer. When I'm drunk I can just follow the cable to bed. it works out pretty well.

Went to a shop to buy bubble plastic envelopes (gotta send something carefully).

Walked out with a new Bluetooth music headset, couple of charging cables, Ethernet cable and a music input splitter and also those envelopes.

Why am I like this 😓

University dorm admin story:
One guy had a problem with his ethernet cable. He broke RJ45 and wanted new one, so he asked on dorms group what to do. He was pointed to admin. So he grabbed a knife, cut the cable as close to wall as he could and walked with it to the admin guy. He said that he had problem with his cable and want new RJ45, so admin applied it on the both sides. Then he asked how to plug it back to the wall :D

A roommate said he didnt have internet on his laptop. Wifi wasnt working for him and the cable doesnt fit because he has a new ethernet port and needs another cable for that.

I told him that there is no new ethernet port or new ethernet port standard, I would have heard about it.

But he insisted that it was true.

So I grabbed the ethernet cable, pulled the clamp on his ethernet port down (as most new laptops now have) and plugged the cable in.

What I did wrong during my home office cleaning session this morning:
- put soap on my mouse mat
- snapped my enter key
- vacuumed up my F8 key
- absent-mindedly cut my ethernet cable
- lost my zero key
- dropped my backup hard drive (data was recoverable, but I need a new drive)
- lost one of the nose pads on my glasses
- got a cocktail stick stuck in a USB port
- exploded my mouse by using the wrong type of battery

Things I did good:
- nothing

So my ethernet randomly stopped working on Arch.

At first I thought it had to do with a conflict between it and my tethered phone, so I tried removing all my connections. Still wasn't working.

Next I tried to test the driver itself and make sure it loaded on boot. It loaded, but was disconnected.

Next I decided "fuck it, I know I was just using the internet on Windows, but I'll check the ethernet cable is still plugged in anyway". It was, and it was returning the right MAC address, but still no connection.

So I try debugging the driver further. Everything seemed fine, except it would time out trying to establish a dhcp connection.

Finally I figured, maybe Microsoft tried to troll me and lock out the ethernet waking on boot. So I restart my computer, load into windows and check my ethernet driver, it seems fine. I go to disable the shutdown of the card on OS shutdown. Turns out this driver no longer has that capability.

Wait a minute!? Windows is also having connection issues!?

I look to my left.

Fuck my life...

My router was off... I must of kicked the powerboard under my desk..........

Linux is great they said
Linux works well they said
Linux is totally awesome they said

- - -
4 live cds
(Ubuntu, mint, Debian, Antergos)
3 wouldn’t boot beyond splash screens or even into setup.

no fucking keyboard
No fucking wifi
No fucking trackpad

Now I’m sitting here with Antergos, with a USB keyboard, USB mouse and an ethernet cable plugged into my laptop 🤷‍♂️

Good news... I think I might be getting through the hard parts

Senior: pull the red ethernet cable from Node X from row Y

What the ethernet cables look like:

One of the students in my department was smart and driven, but also really awkward. I had known him perhaps better than most other students, and had gleaned that he was depressed and had low self esteem.

On a few occasions he tied a noose out of an ethernet cable hanging from the ceiling and played "Pumped Up Kicks" when asked to choose a song at a party. Really strange stuff. If we had been betting on who would turn out a school shooter, I would've put my money on him.

Anyway, he graduated last year and this year I found out federal agents raided his home because he was building pipe bombs and intended to kill a bunch of people and himself. He's now doing at least 10 years in prison.

Sure. Just unplug my ethernet cable without asking. Not like I'm trying to work or anything, right?

Coworker: Why isn't my internet working? I've checked everything, even the ethernet cable!

Me: *sobs*
Me: *connects ethernet cable*
Me: Try now...

The website for our biggest client went down and the server went haywire. Though for this client we don’t provide any infrastructure, so we called their it partner to start figuring this out.
They started blaming us, asking is if we had upgraded the website or changed any PHP settings, which all were a firm no from us. So they told us they had competent people working on the matter.

TL;DR their people isn’t competent and I ended up fixing the issue.

Hours go by, nothing happens, client calls us and we call the it partner, nothing, they don’t understand anything. Told us they can’t find any logs etc.

So we setup a conference call with our CXO, me, another dev and a few people from the it partner.
At this point I’m just asking them if they’ve looked at this and this, no good answer, I fetch a long ethernet cable from my desk, pull it to the CXO’s office and hook up my laptop to start looking into things myself.

IT partner still can’t find anything wrong. I tail the httpd error log and see thousands upon thousands of warning messages about mysql being loaded twice, but that’s not the issue here.
Check top and see there’s 257 instances of httpd, whereas 256 is spawned by httpd, mysql is using 600% cpu and whenever I try to connect to mysql through cli it throws me a too many connections error.

I heard the IT partner talking about a ddos attack, so I asked them to pull it off the public network and only give us access through our vpn. They do that, reboot server, same problems.

Finally we get the it partner to rollback the vm to earlier last night. Everything works great, 30 min later, it crashes again. At this point I’m getting tired and frustrated, this isn’t my job, I thought they had competent people working on this.

I noticed that the db had a few corrupted tables, and ask the it partner to get a dba to look at it. No prevail.

5’o’clock is here, we decide to give the vm rollback another try, but first we go home, get some dinner and resume at 6pm. I had told them I wanted to be in on this call, and said let me try this time.

They spend ages doing the rollback, and then for some reason they have to reconfigure the network and shit. Once it booted, I told their tech to stop mysqld and httpd immediately and prevent it from start at boot.

I can now look at the logs that is leading to this issue. I noticed our debug flag was on and had generated a 30gb log file. Tail it and see it’s what I’d expect, warmings and warnings, And all other logs for mysql and apache is huge, so the drive is full. Just gotta delete it.

I quietly start apache and mysql, see the website is working fine, shut it down and just take a copy of the var/lib/mysql directory and etc directory just go have backups.

Starting to connect a few dots, but I wasn’t exactly sure if it was right. Had the full drive caused mysql to corrupt itself? Only one way to find out. Start apache and mysql back up, and just wait and see. Meanwhile I fixed that mysql being loaded twice. Some genius had put load mysql.so at the top and bottom of php ini.

While waiting on the server to crash again, I’m talking to the it support guy, who told me they haven’t updated anything on the server except security patches now and then, and they didn’t have anyone familiar with this setup. No shit, it’s running php 5.3 -.-

Website up and running 1.5 later, mission accomplished.

Look at that fried ethernet cable, Morty!

Why do people say "Well, I don't know about that" to voice disagreement?

If you admit your own naivety on a subject compared to your peers, if you admit that you do not have the required knowledge to have formed an opinion, how can you disagree?

So it can either be expressed with genuine innocence, like 'Well, I don't know about that, tell me more!', which is never the case.

Or it means "Well I don't know anything about that... and I'm ashamed of the fact that I can't find any counter argument, so I refuse to trust your fucking expertise, shut the fuck up until I give you the right to voice your knowledge"

Which is a bit rude.

Now that we're on the topic of annoying expressions and platitudes...

"It's not rocket science" -- Rocket science, understanding how a rocket works, is surprisingly simple. You fill a cylinder with fuel and oxygen, add a pump or two, put some sparks underneath. Chemical reaction equals energy, direct energetic particles using a nozzle, Newton's first law does the rest. It's so simple that people don't actually study rocket science. They study aerospace engineering, or astrodynamics, which are difficult topics.

So if someone says "Devops is not rocket science", they're right, but for the wrong reason. It's actually harder than rocket science. Maybe easier than developing thermal protection system materials or solving n-body orbital problems with a slide ruler though.

"Great minds think alike" -- No, great minds actually think creatively and generate unique thoughts, if two minds think alike, the solution was just fucking obvious.

"Don't reinvent the wheel" -- First of all, pretty much nothing in code looks or even remotely functions like a simple wheel. Even metaphorically, all existing code equates to oval or square wheels. If you said "Hey, don't bother making better wheels, I like my ride to be bumpy because it stimulates my asshole", say no more, who am I to come between a product manager and their anal stimulation.

Anyway, those were four coworkers who I would've strangled with an Ethernet cable if it weren't for a certain pandemic and the risk of infection which comes with choke-coughing.

What are your linguistic pet peeves you get homicidal over?

"PLEASE COME QUICKLY OUR INTERNAL NETWORK IS FUCKED!
-Uh, mam', could you describe the problem?"
Spent an hour, trying to fix this "network issue". Basic level 1 and 2 support. Can't connect using RDP on the server. No teamviewer either. Unplug, replug everything. Restart the server, the router, the switches. I knew that it was something dumb. I spent 3h on the highway.
To find.
That the fucking.
Ethernet cable.
Was plugged oN THE MOTHER FUCKING ILO PORT! FUCK HP, FUCK THIS, FUCK ME BECAUSE I SHOULD'VE ASKED FOR A PHOTO.

"It's fixed, mam'. Did you touch something when it was working?
-Uh, no, I swear. Also, could you please take a look at our printer? It's not working. It was out of ink so I changed the cartridge yesterday, but today it's not working!"

The cartridge was not inserted correctly.

Then she nicely made me a coffee, thanking me for the fix and asking what the problems were.

Just kidding.

Spent the past two hours debugging why ethernet wasn't working on a newly build PC... The other end of the cable wasn't in properly

Network Security at it's best at my school.
So firstly our school has only one wifi AP in the whole building and you can only access Internet from there or their PCs which have just like the AP restricted internet with mc afee Webgateway even though they didn't even restrict shuting down computers remotely with shutdown -i.
The next stupid thing is cmd is disabled but powershell isn't and you can execute cmd commands with batch files.
But back to internet access: the proxy with Mcafee is permanently added in these PCs and you don't havs admin rights to change them.
Although this can be bypassed by basically everone because everyone knows one or two teacher accounts, its still restricted right.
So I thought I could try to get around. My first first few tries failed until I found out that they apparently have a mac adress wthitelist for their lan.
Then I just copied a mac adress of one of their ARM terminals pc and set up a raspberry pi with a mac change at startup.
Finally I got an Ip with normal DHCP and internet but port 80 was blocked in contrast to others like 443. So I set up an tcp openvpn server on port 443 elsewhere on a server to mimic ssl traffic.
Then I set up my raspberry pi to change mac, connect to this vpn at startup and provide a wifi ap with an own ip address range and internet over vpn.
As a little extra feature I also added a script for it to act as Spotify connect speaker.
So basically I now have a raspberry pi which I can plugin into power and Ethernet and an aux cable of the always-on-speakers in every room.
My own portable 10mbit/s unrestricted AP with spotify connect speaker.
Last but not least I learnt very many things about networks, vpns and so on while exploiting my schools security as a 16 year old.

when your update script fails because someone in the office pulls out your Ethernet cable.

"This ethernet cable doesn't work because you made it too fast". ffs I had to fight for my grade that day.

So my school's wifi doesn't support my TV or something, all I know is the wifi doesn't appear as a potential connection for the TV. (Even then, when I plugged the TV into the Ethernet cable, it still gave me an error message.) Well I figured out a loophole Saturday night.

I plug the Ethernet cable into my laptop. Then activate the hotspot on my laptop. Connect to the TV through the laptop's connection. Problem solved.

Loopholes are one of the best parts of life.

Well woke up to a new issue today my laptop ethernet goes down whenever i connect my power cable, so what am i to do pre-charge to gain internet access

I have a little big question

I don't have electricity most of the time but the ethernet cable from my internet provider is still working if i plug it in my laptop.
Except that i have to setup the credential from the provider, user and password.
Now!
I want to plug the ethernet into the raspberry pi (3B+) make it work , because idk where should i enter the credentials and then make hotspot so i can have a router powered up from the power bank.
A pi as router

Is it possible?

Because so far i have seen people who connect the pi to the router but mine requires electricity as any other else.

?? Welp

So us Aussies are about to literally be forced into using NBN soon (for people who aren't Aussies, NBN would be worse than using a log of shit as your ethernet cable) and having all ADSL connections cut off... Fan fucking tastic!

They can barely keep the NBN up and running for one day and can barely deliver promised speeds but nooooooooooooooooooooo, everyone must fucking use it...

User: My printed doesn't.

My diagnostic: USB cable is connected to ethernet port

College. The head Prof of the IT department tries to open a site without even looking at the networking icon, which says disconnected, meaning that the Ethernet cable was unplugged. Tries to refresh a couple of times.

Goes off to find a lab assistant.
Assistant comes is, plugs in the cable.

Finally got my wall up to my desk in whiteboard. 4' by 8' sheets cut to fit the whole wall with a 1/8" clearance at the top. Ignore the raspberry pi, I have to set it up this way because I have no USB network adapter or long enough Ethernet cable. There should have been a magic mirror where the box is but on that specific spot in the wall the studs are only 13 1/2" instead of 14" like they should be...

!rant
working from office for the first time since Covid started.
so many little things I didnt even realise I missed, like an ethernet cable straight into the corp network so I dont have to connect to a VPN just to run a Jenkins build.

i often do tech support in chat rooms in my free time (because i like spreading good will,) so here's a tech horror story

"""

"hey, can you help me fix something?"

sure?

"so i dug my old XP machine out of my closet and replaced the bad Ethernet card with a different one and when i plug in the ethernet cable the PC bluescreens."

# oboi

did you install the drivers? Sounds like it needs drivers

"no"

then install them

"no"

why not?

"it doesn't need any"

why do you say that?

"it said \"This device is set up and ready to use.\" in the balloon in the corner"

it has generic drivers to deal with devices before the real drivers can be found

"shouldn't they work?"

some devices need the extra support provided by the intended drivers, so the generic ones cause issues in those cases

"ok, well, where do I find them?"

do you have a model number?

"yes, it's " # scrubbed for... privacy? i dunno

gimme a few minutes

<insert 45 minutes of aggressive Googling for (str(DEVICE_MODEL_NUMBER) + " xp drivers")>

alright i have the drivers, go here:
# again, removed for... idk.

"they don't work"

# oh here we go

why not?

"These drivers are not compatible with your system architecture."

what version of XP are you using?

"XP Pro"

x86 or x64?

"x64"

# fucking...

ok so this is gonna get real complicated real fast: use x86 XP or I can't help you, none exist for x64 XP.

"oh ok"

<User left the IRC channel.>

"""

I was returning something at MicroCenter the other day. The guy in front of me was picking up a laptop be brought in to have fixed. They had replaced the motherboard, and put all his old data on an external drive.

"So what's this?"

"This is an external hard drive. We copied all the data from your laptop onto it and put a fresh install on it."

"So .. how do I get to it?"

"You just plug it in, over USB."

"So how ... how does that work."

This goes on for a while. Shop owner has to start his computer. Plug in the drive. There was a lot of, "So everything that was on here, is now on here?"

The guy had no basic understanding of external hard drives, USB, copying files ... thankfully while the files were copying from the hard drive to his desktop, he said he needed a longer cable to the router so he could put it on the other side of the room. It took the guy behind the desk an unreasonable amount of time to direct him to the isle with the Ethernet cables, but once he did, I was finally able to return my item.

I'm glad I no longer work in desktop support.

Under pressure for a big feature that had to be merged into develop like one month ago. But I couldn't because of issues I discover every single fucking day.

Today's issue is that a Cucumber test fails. I try reproducing it on my machine, it fails with a different error. Apparently I need to download some 10GB database file from some company server.

Alright, let's download it. But it's damn too slow. Well, let's have lunch in the meantime.

I come back, the download timed out at basically the same point I left it at.

I don't wanna try again. Not without trying to improve things. Download speed is ridiculous. Switching from Wi-Fi to Ethernet definitely helps, I thought.

The cable doesn't work. The port LEDs are both off. Is that cable even connected to something? So I follow that damn cable throughout my colleagues' desks. I'm now doing things without even remembering why.

I finally find the other end. It is plugged to the wall. I try another plug, but that fucking LED is still off. A colleague tells me: not all the sockets are actually connected to the switch, you have to call IT to have yours patched. Stay calm, stay caaaaalm...

A small lamp turns on in my head. Maybe something in my laptop is broken. So I try with a colleague's ethernet. That fucking LED is still off. A-ha.

Turns out, the shitty macbook adapter has this Ethernet port that DOESN'T work out of the box. It needs a driver to even realize there's a port. I look for it, I find it. I finally have wired connection. It's like having drinking water again.

I turn off WiFi, I re-try downloading that fucking database.

Nope, it's still stupidly slow. The bottleneck was in the dumbfuck internal server.

FUCK.

At least I have Ethernet now.

So I just started watching Eli The Computer Guy's videos on networking and I really like them so far(only on the introduction so far though), but I was a bit confused about some of the stuff and I thought to myself that some of this might be obsolote or not so much in use these days/different. So here are some questions(now bear with me, I'm still a noob to the whole topic of networking):

-Are Eli's videos on networking obsolete(besides the speeds that he talks about), what you recommend some other tutorial, if so which one?

-Is a switch necessary for a small network?

-Do we still connect routers to modems or do we just use what we refer to as a router(a mix between a router and a modem -> gateway/gateway router)?

-Can you connect an ethernet cable to your router/gateway?

-So according to Eli if you have multiple routers they make seperate networks that cant just be acessed from each other, then how come it be that I can access my rasperry pi when I'm connected on the network of one router when the raspberry pi is connected to the network of another router and how come it be that once you have the wifi password you can connect to all of them?

There is no joy in life

So I finally managed to set up networking on my 3D printer's raspberry pi: now it can connect to my phone's hotspot or to my uni's wifi network, depending on which is available.

Then I set up OpenVPN, using a remote server as a middleman so I can connect to the printer remotely and start/stop/monitor prints from anywhere.

Everything works great, except for one thing: whenever the Pi connects to the uni's network first, OpenVPN fails to start and connect to my server, rendering the printer unavailable (unless I use an ethernet cable, but that's not a viable operation since I need to lift the printer, and it's heavy).
The only for it to work as intended is to either:
a) keep my hotspot active (which kinda defeats the point), or
b) let it connect to my hotspot first (so that OpenVPN can start properly) and then turn off the hotspot, allowing the printer to reconnect to the uni's wifi and reconnect to my vpn.

Why won't things just work the way they're supposed to? 😭

So I'm working on some communications app which bridges the main server/database with some equipment on the field. Now this equipment works in a redundancy pair: two cpus, A and B, both connected via ethernet, one active, the other standby/replicating and no comms on it. One obvious requirement is that when this equipment swaps the active cpus the comms app should switch as well. Fair enough, going with this into testing phase.

This guy, from qa, got some instructions from someone else:
1. Trigger the soft switch from equipment so that cpus got swapped.
2. Remove the ethernet cable from the standby unit.
3. Observe the communications.

And the test goes like: cpu A is active, B is standby. Switch is triggered, B becomes active, A goes into standby. The cable is pulled out from cpu B.

Test result: failed, no comms ever

I feel accomplished. After arguing with my family for a month or so, I finally solved the WiFi issues in my room! (We live in a flat. And the thick, concrete walls eat the signal super well)

I used to have 2 MBs downstream at most, with very common disconnects and general connection issues.

Now, just yesterday, I laid about 50 meters of ethernet cable all the way from my room to the other end of our house. Laid the cable along the top of our walls so that mom did not have to constantly whine how bad it looks.

Biggest issues were doors (Parents refuse to drill into the walls here, they tend to crumble a lot), but ended up running it under the door just tightly enough that the doors don't squeeze it in any way.

It works great! The cable is almost invisible, and now, my downstream is 30 MBps!

The only downside is that I used an old wifi router in my room that supports only 802.11b/g/n, not ac.

I decided to try out that built in mobile hotspot in win10 but my phone keep couldnt get IP from it.
I tried everything to fix this.
After 2 hours of searching the internet i bumped into an idea.
Pulled out the ethernet cable and plugged in.
It worked.
I cant look at myself in the mirror...

Developers always need
1. A laptop
2. Ethernet cable
3.empty room

;)......

So it's basically impossible to install Arch Linux on a MacBook without an Ethernet cable.

I downloaded the wi-fi drivers and put them on a separate USB and then tried to compile them in archiso, but without success

Because I dev, people think of me as a tech guru to consult on everything related to anything more tech than a stone.

Like guiding people on how to insert their ethernet cable when "the internet suddenly shut down".

So today was going to be the Sunday when I finally connected my smart TV though my raspberry pi to access my network and have it connect to the internet.
My TV is 6 years old, so it doesn't have built in wireless, it does not recognize normal Wifi dongles so you have to buy a LG special one for ~120$ to get hat to work, so my previos solution: screw that, one chromecast + 1 osmc raspberry pi3 and I can do more than what the software build in the TV could do.

But my wife really wanted to be able to play netflix directly on the TV without using her phone so I thought:
If I connect my TV via LAN cable to my raspberry pi it should be able to forward traffic via the built in wireless on the raspberry and be able to have internet connection.
OK, its Sunday, my wife it out, I haven't done anything with iptables in the last 5+ years but I have google and should be able to figure it out eventually:) time to start this home improvement project!!!
OK, lets just check online if there is someone else who had similar idea as a place to start.
... quick google search:

Hmm, in your OSMC, go to teathering, "wifi to ethernet" and enable.
I try it and it works!
5 min and one short ethernet cable was all that were required.

It feels like I cheated and won the game without any effort, and what should I now do with the rest of the day?

This is the weirdest thing that have happened to me related to computers... When I connect an ethernet cable to my computer and I use the iex command (Interactive Elixir or elixir console, whatever) on my terminal it takes about 6 seconds to load but when I disconnect the cable and use iex again it starts instantly, like, what the fuck. This happens with any Elixir command. I've had this problem for several days and honestly I didn't know why it was taking so long to load.

I am working on an embedded system, a microcontroller-based design. The system has an Ethernet port. I am using NetX framework in the microcontroller firmware.
The DHCP Client is executed properly, an IP address is assigned correctly when connected to a router. I connect a laptop to the router using a LAN cable. Then TCP sockets behave the way they should, UDP broadcast behave the way they should. The only issue is, when I connect a Laptop over wireless to the same router UDP broadcast are received on application on Laptop, but data sent is not received on the embedded device.
Any idea why?

Platform:
Laptop is Windows
Embedded Device: Renesas S7G2, NetX framework.