Hello Everyone,
We have a HA structure on our environment and failover action happened.
We checked the HA logs and saw some communication error between Rabbitmq and Polling Engines.
Here is the error.
2022-02-01 14:05:42.337 [warning] <0.11764.410> closing AMQP connection <0.11764.410> (*.*.*.*:54942 -> *.*.*.*:5671 - w3wp.exe, vhost: '/', user: '***'):
*.*.*.*:54942 = Polling Engine
*.*.*.*:5671 = Main Polling Engine
I checked the port requirenments but I didn't find anything about this port.
Is there anyone know about this ?
One more question 
Can we increase this connection timeout ? If yes where ?
Regards,
