I had the same problem (LE 10.0.2 on 4gb RPI4b.)
For me, the issue only affected 5Ghz WIFI, and only when the system time was incorrect, like if I power down overnight.
I found a workaround for this: I was able to connect to a 2.4Ghz WIFI network, let ntp update the time/date, and once it was correct, I could connect to my faster 5Ghz network. Although very cumbersome, it was much better than nothing.
One last note: my router's 2.4G WIFI PSK is WPA/WPA2 mode. Switching to WPA2-only broke the workaround.
