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The following error message appears when accessing the Orion Web Console:
This channel can no longer be used to send messages as the output session was auto-closed due to a server-initiated shutdown. Either disable auto-close by setting the DispatchRuntime.AutomaticInputSessionShutdown to false, or consider modifying the shutdown protocol with the remote server.
All NPM versions
The DispatchRuntime.AutomaticInputSessionShutdown is a part of .Net framework.
This error is caused by an excessive number of concurrent calls or sessions to IIS and restarting IIS would reset this but this may not be a permanent solution to the issue. This may also be due to the WCF caching being overloaded by too much data.