Beta 2 UK crashing my home hub router

[KalEl84]

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).

[KalEl84]

Yeah I think I did put in original post 11 with 3.1 was fine for me also. Clearing the network settings has worked fine, I know I had one additional instance yesterday but that must have been unrelated because since then everything has been fine so that's pretty much 48 hours more or less with no issues apart from one reboot, whereas before I cleared the settings it was every 1-2 hours. Clearing the cache from recovery could have the same/similar result as it's likely something has got stuck somewhere. Still it's beta so things will happen, just glad I sorted it and didn't need to roll back.

[Woolmysta]

Running on a Virgin Media Superhub 4 and no issues whatsoever, seems like something very specific to the hub 3 or a network configuration setting on the phone that resetting the network settings resolves. I'm assuming none of you factory reset after the upgrade to one ui 4 and the networks settings were merely carried over from Android 11? I also haven't factory reset but SH 4 performing perfectly with 42 devices connected which would indicate an issue with the Hub 3 specifically.

[KalEl84]

There is a specific issue with the hub 3 that's been resolved on 4, I read about it on the VM forums but I forget exactly what so I'm guessing other things would have been changed or fixed on 4 also. Yeah I never factory reset after any updates (been on Android since the S3) I know many do, but up until now I have never had any issues at all apart from the usual things with betas (I've used betas before) and this one's sorted now so it's all good.

[MartynaK]

@KalEl84,

Please, report this issue via the Samsung Members application so that our developers can have a look into the problem. Do not forget to attach log files right after the issue occurs .

[KalEl84]

It doesn't happen anymore since I reset the network settings on the phone.

[NewAge]

Hey man,
What setting u did on your phone?
Can you plz advise as its doing the same for me and I am on VM with HUB 3. Engineer been twice, swapped the hub, swapped the splitter, cable, junction box, everything, but it still happens and now I know its 100% coz of this Android 12 beta.
Please let me know the setting u made in your phone and I will give it a go.
I am using S21 Ultra.
Thank u.

[KalEl84]

Got to Settings > General Management > Reset > Reset Network Settings - this will erase all saved WiFi networks so you'll need to put your password in again for your WiFi when reconnecting, but this has worked perfectly for me been 5 days now and everything is fine.

[NewAge]

I have the same issue. On Virgin media with hub 3. Using S21 Ultra.
Since the update I am having nightmare of this crashes. Even VM technical and technicians are bamboozled and struggling to fix it.

[KalEl84]

Reset the network settings in your phone, I posted this topic before I had tried this and it worked.  It's under settings then general management then reset - reset network settings. It's worth a try as it worked for me and I've had 0 crashes for days now. And well done for getting VM technicians to actually look into it because before I found a fix they wouldn't even respond, I got auto answered with useless "help".

[Gary1988]

Oh please me how you fixed this! I thought I was going mad! I've had 3 Virgin engineers out trying to figure out what on earth was going on.

Virgin said my line and signal to the hub was rock solid so they were confused as to why they were even out!