I have a website that was behaving very well with windows 2003 32bit server with IIS6 and Apache 2.0, lately I upgrade to Windows Server 2008 R2 x64 with IIS7 and the same Apache 2.0 (32bit). I'm noticing that after 50-70 users are connected, the response time extremely decreases. In the IIS logs the response time is perfect. It seems that the problem is the Apache.
Any Ideas ???