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I spent ~$35 on new cables and my LAN speed increased 6x (sh.itjust.works)

submitted 3 months ago by [email protected] to c/[email protected]

60 comments fedilink hide all child comments

After seeing that my wireless speeds were much faster than the speeds I was getting over Ethernet, I decided to invest in some new cables. I didn't know it before, but I saw while I was changing them out that my current cables were Cat 5e. While putting my network together, I had just been grabbing whatever cables I could find in my scrap drawers. Now I have Cat 8 cables and my speeds jumped from 7MB/s to an average of over 40MB/s. It's a much bigger improvement than I expected, especially for such a small investment.

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[–] [email protected] 167 points 3 months ago (2 children)

Cat8 is pointless with gigabit equipment as far as speed goes. Cat6 will do 10gig, you just had bad cables.

[–] [email protected] 30 points 3 months ago (2 children)

Yep. I'm running 1/1Gbps wan connection over cat5e just fine. Even on very noisy environment at work with a longish run (70+ meters) we ran pretty damn stable 1/1Gbps over good quality cat7.

[–] [email protected] 6 points 3 months ago (1 children)

I tried running a 1/1Gbps connection over Cat5e at home too, but for some reason, I couldn’t get it to connect properly. Ended up switching to Cat6, and it finally stabilized. I’m still scratching my head over why the Cat5e didn’t work as expected.

[–] [email protected] 6 points 3 months ago

At work where cable runs are usually made by maintenance people the most common problem is poor termination. They often just crimp a connector instead of using patch panels/sockets and unwind too much of the cable before connector which causes all kinds of problems. With proper termination problems usually go away.

But it can be a ton of other stuff too. Good cable tester is pretty much essential to figure out what's going on. I'm using 1st gen version of Pocketethernet and it's been pretty handy, but there's a ton of those available, just get something a bit better than a simple indicator with blinking leds which can only indicate if the cable isn't completely broken.

[–] [email protected] 1 points 3 months ago (1 children)

Wonder if the cables replaced by OP were user-made, not commercial cables, that were our together incorrectly.

[–] [email protected] 4 points 3 months ago (1 children)

They had been collected from various ISP provided modems and routers I've purchased over the years.

[–] [email protected] 11 points 3 months ago

At least in here some of the older modems, specially from ADSL-era, only had two pairs in them, so they were only good up to 100Base-T, which is roughly 7MB/s. So maybe check if that's the case and throw those into recycling bin.