Are you using the external or internal IP adderess when you "hit" the server from itself? If your IIS is set to respond on all IP's you can use "Localhost" or 127.0.0.1, otherwise use the IP IIS is set to. If it's still slow, disable the wireless connection and see if it still slows down.
If this is still slow from the same server, using the IP address, then it's not networking and you'll need to look elsewhere. You posted this under Migration, is it IIS 5 or 6 that you;'re experiencing this on?
Jeff
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