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gs510tpp ports losing connection to network
I have a strange problem. Had a bunch of RUKUS R510 ap's connected to the poe switch for over 5 weeks on a bench, all working fine, devices connecting to the ap's and network with internet access. Then put the switches into comms cab and connected the ap's up. All still working fine. Then the links from the poe switches to the network switches (as used as uplinks) went down. no light on the link port on the poe switch or the port connected to on the network switch. Checked the poe device and the port became red and disabled. reset the port to enable, connected cable, lights started flashing then port got disabled again. factory reset the switch, just set static ip netmask and gateway and it did the same again. I have 2 other GS418TPP poe switches and they are doing the same. The ports are autonegotiating so there should be no problem connecting a port from one of the poe switches to a network switch.. they worked fine for 5 weeks. any help would be appreciated. thanks
Hi Mate
Thanks for your advice. You are right , I could change the setting in CST port configuration to disable the settings. But would not fix the real problem on the network with the flooding of the BPDU packets. I checked the switches. all flashing like mad. Started foot patrol on the network to all the office and asking questions. A bright staff member found a cable and decided to plug it into the network and created a loopback between two points.
This slowed down the whole network, internet access on the network was at snails pace and put the 3 Netgear POE switches on the uplink ports to D-Disable.
So everyone could connect to the Ap's but no traffic to anywhere.. I just had all the new cables fitted to 26 rooms for the Rukus AP's back to new patch panels, then put the POE switches in and everything was sweet and fine for 2 days. Well, until yesterday afternoon.
I have it all sorted now and all the switches and AP's back up and running.
I could disable the settings as you suggested, but I think I will leave it. It will tell me if anyone else has created a loopback, not that I want it.
Thank you very much for your advice, It was very helpful and pointed me in the right direction. You Are a star.. and well appreciated.
9 Replies
Just to say. When the port becomes disabled. it is only that port that becomes disabled. The rest of the ports are still working and the poe ap's are still connected. When I move the uplink to another port on the poe switch it disables it. The patch cables are fine and the rest of the comms switches are fine. It's just the poe switches that are behaving this way.
Hi sparky2020
Those uplinks ports - are they connected to other switches that can do PoE? In that case, this could be the issue. Can you try and disable PoE on the uplink ports?
System > PoE > Advanced > PoE Port Configuration > Disable PoE "Admin Mode" on the uplink port.
It could also be spanning tree related, but try turning off PoE on the uplink ports first.
Cheers!
- Hi. I turned off power on the poe port. Connected it back to the network. Same problem. Port goes red in device view and d-disabled. Its strange because everything was working fine before. Theres been no network changes anywhere else on the network . Thanks for your help
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