My Note 20 Ultra doesn't working good on wireless. The phone connects and work for 5~10 minutes then stops to work on wireless. Alreafy did network reset and wiped the cache. Nothing changed on 5G is working good 🤬🤬🤬 1<edit>
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Unfortunately, I experienced the very same issue on the S20 Ultra and now on the Note 20 Ultra.
I thought OneUI 3.0 would end this nonsense but oh boy was I disappointed.