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I have a WCF service hosted on IIS. It has https and net.tcp bindings enabled. The https binding works fine but net.tcp gives below error:

"The message could not be dispatched because the service at the endpoint address 'net.tcp://localhost/ServiceName.svc' is unavailable for the protocol of the address."

I tried:

  • checked the bindings, both https(port 443) and net.tcp(port 808) are enabled.
  • Net.Tcp Port Sharing Service and Net.Tcp Listener Adapter Service are running.
  • No other service is using net.tcp port 808.
  • Did a test-netconnected for port 808 and it succeeded.

I am expecting this service to not give the "Unavailable for net.tcp" error.

aprajitapriya
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  • Could you share the configuration file ? This helps locate problems faster. – Jiayao Apr 25 '23 at 05:49
  • Here is the part of config file that has binding details: – aprajitapriya Apr 25 '23 at 18:31
  • If you're running Windows 10, try updating your certificates to a better version with better encryption, and set them up in IIS. Or you may see if the solution in [the case](https://stackoverflow.com/questions/3049811/restart-iisreset-disables-net-tcp-protocol) could solve the problem. – Jiayao Apr 26 '23 at 09:56

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