100Mbps on some RJ45 connectors and 1Gbps on some others

koge19 · 25 Apr 2021 at 01:25

Hello All,

A newbie here trying to figure out the technicals on data rates I am getting at with differrent RJ45 connectors.

My cables:
1) CAT 7A+ internal cable - 40 meters
2) CAT6A External cable - 40 meters

The RJ45 connectors I am using
Cat6 RJ45 connector(Gold Plated EZ RJ45 Cat6 Connector by itbebe)
Toolless RJ45 connector(VCE Toolless RJ45 CAT6A Connector, Shielded Tool Free Plug for CAT6A CAT7 Network Cable)

With the CAT 6 RJ45 connector(non-toolless) connected in T586A mode gets me 100 mbps max.

The toolless RJ45 connector gets me 1 Gbps in T586B mode(The network cards and routers are 1 gbps ports) - I am able to get the whole 525+ mpbs on my Virgin internet in this mode on speedtest.

Any ideas why the cheaper RJ45 connectors get me 100 mbps only. If I mix and match a toolless and normal Rj45 connector I get the 1Gbps connection

Any good quality RJ45 connectors I could get which would allow me to get 1Gbps?

Thanks,
George.

Armageus · 25 Apr 2021 at 06:56

koge19 said:
With the CAT 6 RJ45 connector(non-toolless) connected in T586A mode gets me 100 mbps max.

Why are you using T586a. Everything should be B unless you have patch panels and jack's installed to A standard already

ChrisD. · 25 Apr 2021 at 07:42

Armageus said:
Why are you using T586a. Everything should be B unless you have patch panels and jack's installed to A standard already

Agreed.

koge19 · 25 Apr 2021 at 07:58

Thanks guys.No real reason, guess that is what a quick look on the internet gave me. A T586B connection with the normal RJ45 connectors still gave me only 100 mbps.

I can only think that my crimping tool is causing the issue with the normal rj45 connectors.

APM · 25 Apr 2021 at 09:56

Re crimp the slower connections.

ChrisD. · 25 Apr 2021 at 10:02

If it's dropping to 100 Mbps then it's likely not all pairs are being crimped correctly. Are the strands going to the very end of the RJ45 head?

Donnie Fisher · 25 Apr 2021 at 17:20

Agreed, likely just poor connections on the terminals and cables.

koge19 · 25 Apr 2021 at 17:58

Thanks all.

Any ideas how I can fix up my poor connecting techniques. I am using a bog standard set of ethernet tools, so not sure how I can improve my connections skills. When crimping the connections I press the crimp pliers real hard and I am not sure if that is the issue I am facing( I have looked at a lot of youtube tutorials,however my crimping technique seems to the issue).

Armageus · 25 Apr 2021 at 18:08

What brand cable are you using?

You'd be better with some decent Cat5e and start with that

bledd · 25 Apr 2021 at 19:27

Take some close up photos of both ends of one that you're having issues with.

Upload the photos to Imgur then post the links here to them..

You should use a patch panel one end and a wall port on the other. Then buy patch leads to go from wall port to device.

SoundsGood · 25 Apr 2021 at 19:43

Get yourself a cable tester, 6 quid on ebay

APM · 25 Apr 2021 at 21:43

You can overcrimp in fact just give it a squeeze until it's together.

Practice makes perfect.

If you have full speed on other connections you made then clearly you can do it correctly.

bremen1874 · 26 Apr 2021 at 02:40

Armageus said:
You'd be better with some decent Cat5e and start with that

So true. It's still more than adequate for most purposes.

K.C. Leblanc · 26 Apr 2021 at 08:03

It might be easier to terminate them in faceplates. 100mbs only uses half of the pairs so often the result of a poor connection.

I'd get basic tester and go from there.