We have a regional office with two WS-C2950G-48-EI switches, both close to fully populated. Periodically, at a frequency of 1-2 weeks, all workstations in one or the other switch (but not both at the same time) will lose all connectivity to the network. There are no obvious problems with the switch, which remains powered on. The only (easy) way to re-establish connectivity is to power-cycle the switch.
This location is on a serious UPS system, and we think it's not power-related, since the 2621 router that's in the same rack and on the same circuit has been up with no problems for about 2 1/2 years. We've had a consulting electrician look at grounding and phase problems, and he found none. We thought of a possible problem in the Cat5 plant, but the problem occurs randomly in one or the other switch, not consistently in one of them.
Given that this is a remote location with no qualified IT staff, can anyone offer a suggestion for next troubleshooting steps?
Edit: sorry, meant to post in LAN section. My bad. I'll put the message there and you can ignore it here.
