We have an IBM 3745 with T/R which we disconected and attached a router with SNASW instead. Same macaddress as the 3745. It went fine first but when a lot of people started to logon they hit the wall and the SNASW stopped to respond to new connections. We do not use Virtual T/R, just a plain physicall interface with a SNASW port statement connecting the thing. Is there a limit somewhere?