10/100 connection only

Ish · 15 Nov 2018 at 22:18

Hi

What would make our Netgear switch connect at 10/100 instead of 1000?

We have a Draytek 2826-->60m cat5e cable-->patch panel-->short cat 5e cable-->Netgear 724TP switch

I tried to manually set the port on the Netegar to full duplex but then it doesn't connect.

neil_g · 15 Nov 2018 at 22:43

100m is the recommended max length for cat5e so if you're running that plus the extra patch that could be the issue.

Do you really need 100m? Could you run fibre or add repeaters?

bremen1874 · 16 Nov 2018 at 00:10

Most likely a dodgy cable.

10/100 only needs two of the pairs to be working. Gigabit needs all four.

bledd · 16 Nov 2018 at 07:14

Easy to diagnose..

Take one switch to the other and test
Or
Try another patch port and cables
Or
Make an 80M cat5e cable and connect them directly.

A basic cable tester could save you a lot of time here.

Show photos of the terminations.

the-evaluator · 16 Nov 2018 at 07:41

I't say dodgy cable if the only problem was it connecting at 100Mbps, but the mention of the port staying down when it's set to FDX is a bit unusual.

Avalon · 16 Nov 2018 at 09:00

Did you use CCA? While it’s rated for gigabit, anecdotal testing/experience suggests it’s not capable of that over extended distances where conventional copper is.

Ish · 19 Nov 2018 at 14:08

The cables had already been tested and no faults came up. The run is probably close to 80m.

We replaced the run between the switches and changed to Cat6 instead of Cat5e and it now connects at full speed.

bremen1874 · 19 Nov 2018 at 14:27

Low quality cable or poorly installed then.

bledd · 19 Nov 2018 at 16:09

Tested how?

Properly terminated does gigabit at 100M no sweat.

Steveocee · 19 Nov 2018 at 16:13

Stupid question but is the "entire" switch 10/100/1000?
Netgear had a habit on older switches of advertising a Gigabit switch when really it had 24 10/100 ports and 2 Gigabit uplink ports.

Probably wrong but just asking?

mmj_uk · 19 Nov 2018 at 20:25

60m of (cheap) cat5e cable would have been my guess, there's lots of cheap cable knocking around with fewer twists in the pairs to reduce materials etc.

Caged · 23 Nov 2018 at 21:28

If it's an old blue Netgear switch then launch it into a bin because I've never seen a vintage one still work reliably.