Endpoint RMS connects via the wrong IP address.

In our environment there is a SEC and several SUM, which are also configured as MR. I have now received a report from the network that the RouterNt.exe on various clients tries to reach the wrong IP address. Our SEC server has 3 network cards, 1x Admin Network, 1x Backup Network and thirdly a Service Adapter (like the Clients). The various clients try to use the IP address of the admin network and there is no bridge between the Networks.

I upgraded the Sophos environment to version 5.4.1 last year. I have already seen that in the MRInit.conf under "MRParentAddress" all IP addresses of the 3 adapters have been entered. What is the best way to remove the 2 unnecessary Ip addresses (Admin Network and Backup Network) from Sophos Settings?

Is this similar to the SUM/MR Config, as described in the following link? Or should I look at something else?

https://community.sophos.com/kb/en-us/14635

Thanks in advance for your help!

greeting

Heiko