I recently had a T1 data circuit installed to replace a 1M DSL account. We use a sonicwall pro 200 as our firewall. For some reason when I reconfigure the network on the sonicwall for the new circuit and bring it up, the web traffic from network computers on it runs at about 50-60k. The circuit ran fine when run directly into my laptop. I even tested it through and old SOHO/10 and it worked there too!
Any ideas on where to look for the cause of this problem? When I put the circuit back to the DSL account speeds ramp right back up to normal again. Strangely enough with this traffic problem I'm still able to copy a file to a remote office through a VPN channel and it seems okay with that kind of traffic.