I am running HA 2023.6 on a pi4, the 10.2 OS update didn’t cause any issues but as soon as 2023.6.0 core was updated i started to have network issues and i am using a draytek router too.
Luckily i have a test pi to perform updates on before applying them to my production pi, so here are the things i have tried.
I have wiped HA from my test and downloaded a new 10.2 OS, which went well up until 2023.6.0 core was installed, as soon as i get to the login to enter my login details etc, the network started to go crazy, so is not an add-on causing this issue, as is a fresh install. I also tried to syslog to see what happened before the rotuer reboots (which it does every 30 seconds or so constantly) but due to the network issues i was unable to pull anything from this. However i can get a debug log for the incident (Troubleshooting an unexpected router reboot) 3 - View Router’s Debug Log, but is meaningless. I have also made several alterations to the draytek like turning off DoS defence and disabling several things but the router will just reboot as soon as my test HA is at the login screen.
I cannot imagine what HA is doing to cause the router to reboot every 30 seconds, it takes about 10 seconds for my draytek to boot, so within 20 seconds of the router being active it reboots again and i also have intermittent communication on the network even being hardwired.