I’ve finally found other references/threads that seem extremely close to my experience with UniFi in-wall access points and DNS.

https://community.ui.com/questions/A-high-number-of-DNS-request-timed-out-entries-in-the-log/883441f2-d976-421c-bd51-c02c3672a43d

https://www.reddit.com/r/Ubiquiti/comments/13ebq8e/persistent_dns_timeout_issues_followed_by_ap/?utm_source=share&utm_medium=web2x&context=3

https://www.reddit.com/r/Ubiquiti/comments/mcyk5y/dns_failing_until_ap_is_rebooted/

#UniFi #UniFiController #DNS

I suspect a secondary problem is that the UniFi in-wall units overheat. The dropout problem has been very bad this summer. It also seems to correspond to some of the warmest days. The UAP-U6IW dropped off for more than 24 hours over the weekend and was crazy hot when I finally got around to pulling it off the wall. I need to find a better way to monitor this, as I don’t see this info in the controller.

#UniFi #UniFiController #overheat #temperature

The logs on the affected APs still indicate a DNS resolution problem for the Inform URL. So, I overrode the Inform URL with the IP address of the controller. This also did not eliminate the problem.

#UniFi #UniFiController #DNS

I found that I had fewer dropouts of my UniFi in-wall APs, but this did not eliminate the problem.

#UniFi #UniFiController

Since the two #Ubiquiti #UniFi #AccessPoints disconnected again, I tried more stuff.

- unplugged the APs
- tested and verified cables and switch settings
- changed another device on our home network so that 192.168.1.20 (#UAP default IP) was no longer in use
- bound proxy in front of #UniFiController container to an IP address and route
- ran “set-inform” twice with known good controller address, as apparently two inform addresses are stored by each AP.