Odd connectivity issue

I would check the virtual host config on the IIS side - it sounds to me like one of those servers isn't configured right for name-based virtual hosting. There are a few ways to test this: you could trump your hosts file on a local PC and hit each server one at a time, or you could simply disable all pool members but one and test. If it works, enable the next one, and test, etc.

 

 

Hth,

 

--Matt