I had installed SQL Server 2008 R2 on windows 7, but could not able to connect to the report server at
Try doing the following things
Go to Reporting Services Conf. Manager.
1. Change the server account to local account.
2. Remove the SSL if configured.
3. Go to C:\Program Files\Microsoft SQL Server\MSRS10_50.MSSQLSERVER\Reporting Services\ReportServer
4. Change the SecureConnectionLevel value to 0 in rsreportserver.config
Try refreshing the page, it should work now!