[Bossen]

I just purchased a 3COM OFFICECONNECT DUAL SPEED SWITCH 8 switch ( i was using a hub before, 2 computers connected and a t1 connection in the uplink, both computers has its own unique ip )
However, when i plug in my computers in the switch and the internet connection in the uplink it doesnt work at all basically, it barely allows me to connect to MSN / ICQ / IRC, and when i finally get connected i get disconnected almost instantly, same thing goes with surfing, it thinks.. and thinks.. and thinks.. and then if im lucky it might open the webpage i requested, and sthe strange thing is, that if i plug the old hub back in everything is normal?

Any ideas?

Bossen

[DS3Circuit]

T1 connection .... you mean from the CSU/DSU into the switch ? ... if so check to see if you are using a crossover cable.