Dear Sir
Thanks for your reply, I try to start ASP.NET State Service and add sessionState mode="StateServer" cookieless="false" timeout="100" in web.config
, and than the problem seems to be solve
Is it a right way to solve this problem?
I deploy this web application in three servers, only one server has this problem, what is the root cause in this problem ?
Would you please help me to understand and solve this problem?
Thanks a lot.
Best Regards,
Charles MF