We have a network with three gateways: A, B, and C. I configured gateway A to receive incoming connections from gateway B by inputting the necessary details in the outgoing connection settings. After setting up the remote tag provider, I was able to retrieve the necessary tags from gateway B. I attempted to replicate this process with gateway C, but unfortunately, it resulted in a fault. I'm currently unsure of how to resolve this issue and would appreciate any guidance.
Just to be clear, you configured an outgoing connection in gateway B and another outgoing connection in gateway C, both of which pointing to gateway A? Your picture looks to describe a different situation (where you've configured two outgoing connections somewhere). You might need to look at some logs in gateway A (and possibly gateway C) to discover more information.