Dear users;

It is my first post here, but I feel cornered and need some help.

I have a small office setup with Self Hosted Omada Controller (in Proxmox LXC), ER605v2 for the gateway, some EAPs and a 10 port switch.

It is a vanilla setup in default LAN 192.168.0.1/24 as per the book. No VLANs yet, except for the management VLAN1, which is there by default.

APs & Switch adopted without issues.

Controller sees all devices, but when attempting to adopt the gateway, which btw is running the latest firmware (2.2.5 Build 20240522 Rel.75860) it straight away goes into GENERAL ERROR and although the process shows the gateway / router is ADOPTING, it is not, as once refreshed it is still PENDING.

It looks as if there was a communication issue of sorts. Login is correct, can connect to the gateway in standalone mode no issues, where the router sees all the other elements (APs & switch) in DHCP clients list just fine as well. All devices in the same subnet, so this should pose no issues.

Already tried resetting the router (ER605) to factory defaults and starting afresh - no difference.

Tried connecting Proxmox host incl. Omada controller directly to the router on 1 of the lan ports bypassing the switch and adopting when directly connected. The same thing - GENERAL ERROR popup immediately after hitting ADOPT.

Is it likely that due to the firmware on the router being newer than the release date of the controller - there is a certain incompatibility and the latest controller v v5.14.26 is required ?

System logs on the controller do not say anything.
Are there any other logs I could investigate that I do not know of ??

Or any other steps I could take to get this sorted / adopted ?