XGS Switches and clients disconnecting and then connecting again.

lytespeed

I have a client that has multiple XGS switches throughout their facility. The wiring was done by a professional wiring company a few years back, so it's all new wiring.

The client keeps having issues with their device losing network connectivity in the middle of use. When I look at the switch logs, it shows the port going down then going back up at 10M then going down again and then coming back up at 1GB.

These switches are basically "out of the box" for configuration.

What's weird about this issue, is there are multiple parts of the facility, all with their own XGS switches (various different models). They all seem to exhibit the same behavior.

I can't seem to make any sense of it, does anyone have any ideas?

!UPDATE! We have recently purchased a new XGS2200-54HP switch for our office and it's doing the same thing! Multiple ports up and down and looks like difficultly negotiating the speed (10M/F then 1G/F)

Here is an example of what it looks like in the log:

4 2023-05-02T09:58:38Z DE interface: Port 21 link down
6 2023-05-02T09:54:39Z DE interface: Port 21 link up 1G/F
7 2023-05-02T09:54:35Z DE interface: Port 21 link down
8 2023-05-02T09:54:25Z DE interface: Port 14 link up 1G/F
9 2023-05-02T09:54:22Z DE interface: Port 14 link down
10 2023-05-02T09:53:57Z DE interface: Port 14 link up 10M/F
11 2023-05-02T09:53:55Z DE interface: Port 14 link down
12 2023-05-02T09:53:16Z DE interface: Port 21 link up 1G/F
13 2023-05-02T09:53:06Z DE interface: Port 21 link down
14 2023-05-02T09:52:06Z DE interface: Port 21 link up 1G/F
15 2023-05-02T09:52:04Z DE interface: Port 21 link down
16 2023-05-02T09:51:39Z DE interface: Port 21 link up 1G/F
17 2023-05-02T09:51:30Z DE interface: Port 21 link down
19 2023-05-02T09:46:05Z DE interface: Port 21 link up 1G/F
20 2023-05-02T09:46:03Z DE interface: Port 21 link down
21 2023-05-02T09:45:39Z DE interface: Port 21 link up 1G/F
22 2023-05-02T09:45:30Z DE interface: Port 21 link down
25 2023-05-02T09:37:43Z DE interface: Port 21 link up 1G/F
26 2023-05-02T09:37:32Z DE interface: Port 21 link down
27 2023-05-02T09:23:33Z DE interface: Port 21 link up 1G/F
28 2023-05-02T09:23:30Z DE interface: Port 21 link down
29 2023-05-02T09:23:20Z DE interface: Port 21 link up 1G/F

Zyxel_Melen

Hi @lytespeed,

Could you DM me the tech support and what device was connecting when the issue occurred?

Also, did you enable the green Ethernet function on the switch?