I have a catalyst 3750g (switch 6 in a 7 switch stack) with a port on switch 6 set to
switchport mode access. This port is associated with a vlan happily working for another port in the stack (switch 1) which in turn is connected to a 3Com 16 port switch
Adding any multiport device such as a hub or switch causes the port on switch 6 ( 6/0/24) to be disabled needing the no shutdown command to bring it back to life. Directly connecting a host to the port and everything is fine.
I've checked the settings with the port in switch 1 and its exactly the same -
switchport access vlan 22
switchport mode access
along with a few settings about stp
So far a 24 port netgear switch, a 16 port 3com switch and a 4port hub have all deactivated the port. Any ideas why it may be doing this? I'm sure its something obvious but I can't figure it