I'm trying to use option 138 to manage devices on different subnet than the controller. All switch and AP's work, Router does not.

Router - ER7206v1.0 version 1.2.3 IP - 192.165.1.1

Switch - TL-SG2210P v3.2 version 3.20.7 IP 192.165.1.2

AP's (all the same) - EAP235-Wall(US) v1.0 version 3.1.0 - IP's 192.165.1.11 - xx.xx.1.15 (5 total)

Controller IP - 192.165.10.3

Mgmt Lan has Option 138 set to 192.165.10.3 - prior to this none of the devices would connect.

Now all except the router connect. I've restarted the router. I've done a hard reset of the router. All these devices were just moved from another different controller as i'm moving from windows pc controller to container in unraid. I did not do a migration of settings since i was making major changes to the overall site setup / config. I forgot the devices from the old controller and adopted them into the new controller. 

Container: mbentley\omada-controller

If i move my unraid server into the mgmt lan (xx.xx.10.x) IP range it all adopts and connects fine. I prefer to not have my unraid in the infra network if at all possible. 

Is this a bug in the ER7206? Something else wrong here? I'm no networking wizard but this seems pretty straight-forward considering the other devices all connect ok.