After installing TFS SP1 Beta, I had troubles getting the SharePoint and reporting services working. So I thought I would back out and start over. At this point, everything is working except for reporting.

Whenever I try to navigate to http://localhost/reports/Pages/Folder.aspx, I get the following:

"The underlying connection was closed: An unexpected error occurred on a send."

Where do I start looking for the cause of this? I've already double-checked the reporting services configuration, and everything appears to be OK.

Any ideas???

It could be due to a bug in .NET frameworks 1.1. See the the KB article for more information on the bug and the resolution:

KB Article: http://support.microsoft.com/kb/915599/en-us (KB article # 915599)

Assuming you backed out SP1, you may want to try and "repair" the SQL Reporting Services install.

Also, make sure to check the event log, as there may be a useful error entry detailing what's breaking.