we have a problem with 3com 48 port superstack 3 3250 switches randomly resetting. Its happening all over the place and 3com are refusing to acknowledge a problem. A good illustration is: in a cabinet we have
3x3250s and 1x superstack 3 3226
the main network comes in on a fibre connected to a gigabit port & an adapter. the switches are chained using utp on the gb ports
if the cabinet is configured thus: fibre > 3226 > 3250 > 3250 > 3250
the first (and only the first) 3250 randomly reboots
if the cabinet is configured:
fibre > 3250 > 3250 > 3250 > 3226
we have the same problem. the first 3250 randomly reboots. it doesnt seem to matter which 3250 is which.
in other smaller cabinets with only one or two switches we've temporarily fixed the problem by replacing the 3250 with a 24 port 3226 and having the inputs spread around. this seems to run ok.
any ideas on whats going on or experienced anything like this
cheers
Andy