Unable to make the session state request to the session state server

Solution 1:

  1. Start–> Administrative Tools –> Services
  2. Right-click on the ASP.NET State Service and click “start”

Additionally you could set the service to automatic so that it will work after a reboot

Solution 2:

If you need to change HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\aspnet_state\Parameters\AllowRemoteConnection to 1, remember to restart the ASP.net state service after you change the parameter.