Unable to make the session state request to the session state server . error code=0x80072749

Question

I am seeing an error on my production machine. The application is working fine for a while then suddenly it's not responding and I fix it by restarting IIS.

StateServer is running fine in Services and the mode is automatic.

The string below is what I'm using in web.config:

<sessionState cookieless="UseCookies" mode="StateServer" stateConnectionString="tcpip=127.0.0.1:42424" stateNetworkTimeout="60" timeout="2" useHostingIdentity="false" compressionEnabled="false">

Unable to make the session state request to the session state server. Details: last phase='Sending request to the state server', error code=0x80072749, size of outgoing data=0

HttpException:

Unable to make the session state request to the session state server. Please ensure that the ASP.NET State service is started and that the client and server ports are the same. If the server is on a remote machine, please ensure that it accepts remote requests by checking the value of HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\aspnet_state\Parameters\AllowRemoteConnection. If the server is on the local machine, and if the before mentioned registry value does not exist or is set to 0, then the state server connection string must use either 'localhost' or '127.0.0.1' as the server name.

Answer 1

This post on SO suggests quite a few things you can look at.

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

Answer 2

Go to services, start ASP.NET State service. Then check the key is true :

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\aspnet_state\Parameters\AllowRemoteConnection