I have a newly installed SBS 2008 Standard server on a Dell PowerEdge Quad Core Server, 2 x 640Gb SAS in Raid1 with 8Gb Ram. The server has been running fine for a week but in the last two days it is sending excessive internet traffice to the point where the internet is unsable. When I disconnect the server frm the network I get fast 7Mb d/s and 512Kb us ADSL but with the server plugged in I get very slow if any internet on the server and all 10 clients. I have check DNS etc and I can ping URL''s no problem. When I try to RDP to the server externally it shows me the desktop then disconnects. I have also run the SBS 2008 Best Practice Advisor and corrected the few advisory items it found. I also made sure it has the latest Dell drivers and have tried removing the AV to see if it had any effect which it did not.
Any ideas appreciated before I have to fresh install and restore for backup. Unfortunatley I am time pushed (as always) on this one!