I have an interesting situation. I have several WS-C2924-XL. The problem is that some of them stop responding to pings and will not let me telnet into them. Some times I can just open a direct console session to them and that resolves the issue, some times I just do a shut and no shut on vlan 1 and it comes back up, while other times I have to reset the switch. Keep in mind that while the switches are doing this, though, that I can pass traffic past the switch itself. I have other switches and access points plugged into these switches, and I can reach them with no issue at all. I can see clients associated and pulling DHCP addresses and everything. These devices have multiple levels of IOS on them. I initially thought it could be IOS related, but I have upgraded to the newest IOS available and I am still experiencing the same issues. Any one have any ideas?