Right now we have Comcast as our ISP and I'm using their router to forward the public IPs through to three servers. The servers have one NIC each and a private and public IP address attached to each NIC.
The problem I'm having is whenever there is no activity for over a minute, all of a sudden I cant get to my web page.
I have a landing page website and a new SharePoint site each running on a Windows Server 2008 R2 VM and an old SharePoint site running on a Windows Server 2003 R2 VM. I never have any problems with the server running Windows Server 2003. It never seems to go to sleep like the other two. All three servers are now virtualized. Up until three days ago just the Windows Server 2003 and one of the Windows Server 2008 servers were.
If I want the webpage to come up all I have to do is initiate a remote desktop session and all of a sudden it "wakes up" and I can now access the web page. I dont even have to log in via RDP just initiate a connection.
Comcast is telling me everything looks good on their end so they are not helping. The funny thing is I can RDP into the SharePoint server, then RDP into the other Windows Server 2008 server and work on it, yet I still cant access the web page on the 2008 server.
Any ideas as to what might be causing this problem?