I am also using Samsung S21 Ultra on which I also facing the same thing. I have turned off all the advanced level features still connectivity issues exist.I was having all kinds of connectivity issues since switching to the S21 Ultra. I read this thread and started testing. I disabled all advanced features like stealth mode and installed the beta. Same issues with not even being able to complete a speed test as they would error out. ome tv bazoocam As soon as I disabled Adguard all my apps started showing unread content such as YouTube and Reddit. I installed the nightly and nothing improved. I ended up uninstalling and using AdguardVPN with AdguardDNS adblocking. I will keep this setup untill Adguard figures out what the issue is.
I have an S21 Ultra and I gave up on AdGuard months ago. It has to many issues with speed and causing sync issues. I ended up with NextDNS and using PrivateDNS. This also works with most VPN providers like Nord & Express. I still use AdGuard on desktop and have several lifetime license.Still no updates on this? It's still happening even on nightly. I'm about to give up on adguard.