Unable to make the session state request to the session state server
- Start–> Administrative Tools –> Services
- 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
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.
Check that:
stateConnectionString="tcpip=server:port"is correct. Also please check that default port (42424) is available and your system does not have a firewall that is blocking the port on your system