PoE port disabling on 3Com 4800G PWR switch

[mcgoo44]

We have approx 30 3Com 4800G PWR switches on our network.

Recently we have experienced problems where a port that has PoE enabled changes it's status to disabled.

All our switches are running 5.20 release 2202P11

When the problem happens, we disable PoE on the switch then enable it again, this seems to resolve the problem for a short period of time. The problem is random throughout the entier network and is not common to all ports on the switch.

Anyone have any ideas?

[Inge_Suzzy]

what is the amount of watts that the devices conected require?, if it required more than 15.4W it won't start up, you have to check the amount of power of your switch with a command, i don't know exactly the command but it's comething like this display power ..., when you have this quantity you could measure if you switch can't support all the devices that require poE

[sonofgod]

hey i have the same problem but in reverse

Ihave a switch 3com 7506 pero las tarjetas de cobre no encienden telefonos IP

Nortel, alguien por favor me puede ayudar

saludos