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I spent ~$35 on new cables and my LAN speed increased 6x

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.

avidamoeba ,
@avidamoeba@lemmy.ca avatar

Cat 5e does 2.5Gb. Getting higher spec cables might increase the probability of them being well made to spec but other than that, what you really need is good quality cables, Cat 5e or otherwise.

RelativeArea0 ,

Also learned this the hard way, when i was starting my “homelab” , I bought a box of (not knowingly that its bad) cheap CCA(copper clad alum) cat6 cables and im wondering why are my access points not negotiating to gigabit, turns out cca are trash and shouldn’t be used on POE or even on high speed trunks, learned my lesson now and swapped my cables to pure copper, they are more expensive like 100$ more expensive but at least they do the job.

Mellow12 , (edited )

Ethernet speeds historically were measured in 10/100. In my past life I worked for an a small rural isp. And part of my learning I was taught that cat5 was 8 strands of wire, or 4 twisted pairs. I got very familiar with crimping patch cables. If one strand were cut a network card would negotiate down to its lowest speed and still work at 10mbps. Operating on 4 wire or two pairs. It’s possible with those numbers you had a bad connection, or a broken strand in the cable and it auto negotiated down to 10mbps. To this day I still crimp my own cables, and I own a cheap cable tester to make sure the crimps and cables are good.

possiblylinux127 ,

40MB/s is no where near the limit of cat 5e. It can easily do gigabit.

BCsven ,

Not all cat 5e is created equal…you can buy a good cat5e from a reputable supplier or a super shit one at the dollar store…they just stamp 5e on it even if it is under sized wire and not actually been tested to work

avidamoeba ,
@avidamoeba@lemmy.ca avatar

Well if it can’t do the spec, then it’s not Cat 5e is it. 😅

SaltySalamander ,

Cat 5e

The fact that your old cable was cat5e has no bearing whatsoever on you getting shit speeds before changing cables. The gigabit spec was codified and products were on the market before the cat5e spec was ratified. Gigabit ethernet was literally made for standard cat5. I bet your previous cable was terminated incorrectly, and was only using two of the four pairs, limiting you to 100mbit.

BearOfaTime ,

Bingo!

Proper termination can be a bitch.

gibmiser ,

Orange white, orange

Green white, blue

Blue white, green

Brown white, brown

Learned it 20 years ago, never used it. how did I do?

CaptSneeze ,

You pass! I’ve done several thousands of these over the past decade.

rebelsimile ,

yeah I did this almost 30 years ago and could recite it from scratch, haven’t made a cable since hs

confusedbytheBasics ,

Now do the A spec.

just_another_person ,

Cat8 is not the benefit here. It’s all twisted pairs as any other CAT cable. You probably just had a shitty quality cable.

possiblylinux127 ,

Or ones (or one) that was worn out.

BearOfaTime ,

Yep, a break from being wrapped up tightly a bunch of times

cmnybo ,

Cat5e works fine for gigabit. If it’s not connecting at 1G, then the cable has been damaged and is probably connecting at 100M.

You should be seeing about 118MB/s in an iperf test on gigabit ethernet.

rtxn ,

This. I’ve had issues at work while imaging classroom computers where some would finish in ~30 minutes and a few would need hours. All of the computers used Cat6 cables. This being a classroom, and students being absolute wankbags, they kept yanking the computers and kicking the cables, so the wires came loose from the plugs. I later used ethtool to debug the slow computers – the switch would only allow 10baseT link modes.

normonator ,

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

IsoKiero ,

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.

LastoftheDinosaurs ,
@LastoftheDinosaurs@reddthat.com avatar

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.

mosiacmango ,

Cat5e will also do gigabit, so yeah it wasn’t a cable spec issue. Bad cables is likely dead on.

5e will give you issues with good cable if it’s a long run as well, but by long run I mean 300ft.

eskuero ,
@eskuero@lemmy.fromshado.ws avatar

Your connection is 40MB/s I assume

5e is capable of getting the full 1Gbps of my connection so I easily see over 90MB/s. That being said I bought a big 100m bulk years ago and have been clipping it myself with care.

If you were indeed using leftover/ free cables of cuestionable quality it indeed could be a reason for poor perfomance

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