Hi all - first post - strange problem - for the record I have a pretty good knowledge of networking etc but am in no way a network pro.
Here's the situation -
Have a windows 2003 server and 5 workstations (w-7 and W-8.1) running through a Cisco router and a gigabit 5 post switch - NO problems.
Had to shut down a business that has a 3Com 3226 24 port stackable switch that was used to connect their equipment.
Need to add one more workstation but the 8 port gigabit switch is full so I figure I'll just transfer everything over to the 3Com and be good to go! NOT!
Bottom line - there is NOTHING I have tried that will allow the server to connect through the switch to other members of the network. They are invisible in the net map. Going to one of the workstations, I can see all the other w/s but the server is missing.
I tried uninstalling the NIC's in the server - flushDNS - reset the Winsock - changed cables but no matter WHICH of the 24 ports in the switch I use, I get "Cable is disconnected" error. The switch just does NOT see the server. The xfr light is NOT lit on whatever port I plug the server into.
Put everything back on the 8 port switch - works like a charm.
It acts like there is a firewall or filter that is blocking the server for some unknown reason but I'll be darned if I can figure out how or why.
Anyone have any experience with this switch.