Envisalink 4 server closed connection

I’m having issues with my Envisalink integration… It works for couple hours then for some reason the sensors not triggering condition. If I restart HA it works but after few hours it stops. In the logs section I see issue with server but I can confirm on envisalink app EyezOn the device is UP.

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Anyone can assist?

Your symptoms aren’t identical, but I ran into the same error and it was caused by having two instances of Home Assistant trying to connect (while I was migrating from one to the other).

From the Envisalink TPI documentation:

The Envisalink acts as a server for the TCP connection and the user application is the client. The Envisalink listens on port 4025 and will only accept one client connection on that port. Any subsequent connections will be denied.