Target server: Amazon Linux AMI (EC2), ignition 8.1.3
Source server: Windows Server 2019, ignition 8.1.3
I ran into problems with this configuration (outgoing connection from windows to linux server) upon upgrading both servers from 8.1.2 to 8.1.3. The linux server became unable to accept the incoming connection. I tried deleting and re-creating the connection, I tried disabling SSL on the outbound side, deleting the certificate on the incoming side, all to no avail.
I was able to re-establish communications by rolling back only the linux server to 8.1.2.
I was unable to find anything in the gateway logs on the linux side under the GAN and web socket loggers that meant much to me, but I did see this on the outbound side logs:
-> outgoing local='<sourceserver>' remote='https://<targetserver>:8060/system' method=outgoingConnect: Connection attempt to wss://<targetserver>:8060/system/ws-control-servlet?name=htpwign02&uuid=3d4c61db-72cd-475d-9148-17e74138a0c7&url=https://10.212.193.97:8060/system failed! Response code=403, error message=org.eclipse.jetty.websocket.api.UpgradeException: Failed to upgrade to websocket: Unexpected HTTP Response Status Code: 403 Forbidden.
Port 8060 is open on both servers, and I also have several other windows servers running 8.1.3 that are able to open connections with no problems.