"Failed to adopt this gateway because a gateway already exists in this site" adopting router
I have an existing Omada site configured on one site. This site has the OC200 and the router whcih is an ER605. I am trying to add another ER605 from a remote site. I am able to get the device to show in the Omada devices list with a "Pending" status. When I try to adopt it, I get a message, "Failed to adopt this gateway because a gateway already exists in this site."
I am forwarding the proper ports to my OC200 located in the first site. That is how the OC200 is able to see the remote router with a Pending status once I've set that router's Controller setting to the first site's public IP address. Everything looks right on the second router Controller Settings screen. The Connection Status shows as Online.
I tried setting the IP address range of the second site to a different range initially. Thinking this was a problem, I reset it to use the default of 192.168.0.0/24. The issue persisted. i tried going through threads showing similar issues, but I have not seen anything that actually addresses this problem. This seems pretty straightforward so not sure why I am getting this error. I have not seen anything that states I can't have more than two routers managed by a single controller. In fact, upon reading the site-to-site VPN documentation, it refers to two routers managed by the same controller.