When some users run http://SSRSserver/reports and …./reportserver in one server, they get the blank page in IE. But other users can run it in the same server.
Also all users can run the reports in IE in other servers (e.g. SSRS and EP server).
Due to some IE settings. We have not got the exact setting for this issue.
Go to Internet Options –> Advanced –> Reset (check the option "Delete Personal Settings"). After that, user can view the SSRS website.