Next couple of blogs are from Romitg, these are some of the interesting issues he had fixed:

Issue

When you try accessing Team Foundation Server using Team Explorer within the server, you might see a connection failure with error TF31005.

Symptoms:

Open http://localhost/default.aspx this should work fine
Open http://<servername>.aspx , you might get an Error Message: 403.6 - Forbidden: IP address rejected
Try connecting to TFS with IP address or using  local host  the connection should be successful

Cause:

 The Default website on port 8080 might be set with “Denied access” under  “IP address access restrictions” and have a exception set only for the loopback adaptor (127.0.0.1)

Solution:

 Start| Run| inetmgr
Expand Web site| Default Web Site Properties | Directory Security | Edit “IP address
and domain name restriction” and selected Grant access

Content by: Romitg

Reviewed by: Lucky