So I'm running Android 12/OneUI 4.0 beta 2 on an S21 Ultra and for some reason when I have it on WiFi and connected to my home router the router locks up (drops internet, kicks WiFi devices off and becomes unresponsive) every 1 - 2 hours or so (needing a reboot to bring back up). If I keep phone off the WiFi and just on mobile data my router is fine and works all day with no problems. I contacted my ISP thinking it was the router (Virgin Media UK - home hub 3) and their tech support is useless "reset router completely" which I've done and no difference. So wondering if anyone has any idea why it might be doing this? I'm using the 5Ghz band and the phone works on it until the box locks up again, didn't have this problem on 11/3.1 worked fine no issues. I've ruled out everything else, it only happens when phone is connected. I've rather not factory reset unless last resort - other than this beta is behaving great, all apps work and no excessive battery drain.
Thanks in advance!
(Asked this on Reddit also).
