Hi Guys, I know that this question is been asked more than dozen times.But somehow all the solutions provided, nothing seems to work on my web site.
CUrrently I have a .aspx page which uses update panel.AFter sitting idle for more than 15 min. If a user tries to refresh or do anything on that page white screen appears and the user couldn't do anything. I above error(Pagerequestserverexception) is displayed.CUrerntly I have set eventvalidation='false' on my page but that doesn't seem to work.
One other solution is rolemanager, which I don't know how and where to use it. I have just added these two lines in my web.config.
DO you guys think of any other solution.
I got the problem, it was SSL problem on server. If the SSL certificate is not authenticated AJAX gives you this error. You can disable SSL certification by going into IIS security option.