ASP.NET website is not working: Unable to make the session state request to the session state server

Created:

2017-05-19 21:04:17 UTC

Modified:

2017-08-16 16:01:58 UTC

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ASP.NET website is not working: Unable to make the session state request to the session state server

Applicable to:

  • Plesk Onyx for Windows

Symptoms

ASP.NET website is not working with the following error shown in the browser:

Server Error in '/' Application.

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.

Cause

ASP.NET State Service is stopped.

Resolution

  1. Start ASP.NET State Service in Windows under Control Panel > Administrative Tools > Services > ASP.NET State Service .
  2. In the same window, change startup type of the ASP.NET State Service to Automatic and click OK .
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