UAP inform Server Reject
Hey All,
Another interesting troubleshooting session to share. We had a site that was trying to add a new Ubiquiti UAP-AC-HD (access point) to an existing infrastructure.
The issue we were running into, is that when we attempted to run the “inform” command on the access point, we kept getting an error in the logs “Server Reject”.
There is a great command you can run on the AP to see the logs in real time:
tail -f /var/logs/messages More details are here: https://help.ui.com/hc/en-us/articles/204959834-UniFi-How-to-View-Log-Files#2
The new access point and the unifi controller were on different subnets, but they could ping each other both ways. Also, there was no firewall setup between them.
We rebooted the access point a few times, and also factory reset it to no avail. We then dug through the controller settings to see if anything stood out.
Finally, we checked the ports on the controller server:
Netstat -anoto see if the default port 8080 was listening. There wasn’t much activity on that port, but we could see a whole whack of activity on port 8585.
It looks like someone had changed the default adoption listing port away from the default of 8080, to 8585 in this case.
So we switched the adoption port for the inform command on the AP and presto, the HD showed up in the controller asking to be adopted.
Hopefully this helps someone else out there who ran into this issue!