@Zathras But that doesn't make sense, current controller software being offered is 1.25 2 Build 20230704 Rel 64541, I have not taken this yet. My current controller firmware is 1.24.0 build 20230328...

OK, another update from me... Looks like I may have been barking up the wrong tree with my previous post. I configured the failover option and boom, disconnected from controller within under 2 hours...

OK I think I may have stumbled upon the root cause of all this purely by accident. What we need is some verbose logging in the controller and it might help to solve the puzzle. I am just going to...

No Change for me on Firmware 2.2.0, The main router connection to the controller lasted a couple of hours after a cold restart & 2.2.0 Upgrade and bam, disconnected and stays that way forever until a...

I will just be happy if my router can stay connected to my controller, so I can control it even.... That would be worth $10, I have $10 ready to send to you TPL on top of the over $1000 I have...

Just to add to my prior post: ER605 v2.0 Firmware 2.1.3 Build 20230616 Rel 6307 Controller OC200 v1.0 Firmware 1.24.0 Build 20230328 Rel 52384 Controller Version 5.9.32