Hi Team. I got the same issue after upgrading iOS to 14.2
I've tried to reset network settings and all the hints regarding DNS and Private address above...
But in my case the solution was to change the settings of the Access Point (Router). I switched the encryption from "WPA2 (CCMP)" to "WPA2+WPA3" and WiFi it works again.
I hope it might help some of you
SidSloth
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