Exchange 2003 Server slows entire network Internet access
All at once a couple days ago internet access slowed to a crawl on all the computers onhte domain including both workstations and servers. I'v tested a direct connect to the T-1 Cisco 1721 router supplied by our T1 supplier and everything is fine. I've checked the switches and all is ok. On further testing I've determined that the problem only occurs when the Exchange server (Ver. 2003 on a sewparate box) is running. If it is shut down everything is normal. If I start it up Internet access dies after 5 to 10 minutes. It sounds like a virus or trojan but so far I;ve found nothing. We have a total of two Dell servers. One is the domain controller and file server. The other is the Exchange server. Both are running server 2003.
This slow down does not appear to affect the local network speed - only the Internet. Any ideas would be appreciated.