WIFI

Hi

I have GArmin Fenix 6 X Pro. Till last week it was getting connected to my home Wi fi, and with Mobile (being used as Hot Spot). But now it is not getting connected to both. 
Via Bluetooth the connectivity is established between phone and watch.
But WIFI connectivity is not taking place.
I have not changed any password.
I did factory reset on watch and also installed latest software 20.50 via Garmin Express using PC.
After completing these steps, search WIFI button was pressed, but it was still not able to detect the WIFI. I created two more WIFI hot spots at home using different mobile phones, but the watch is not able to detect any WIFI. Further the watch hangs at the WIFI page itself.
Setting up of  Network through GARMIN connect and EXPRESS is happening. Network and password is also created but the watch is not able to detect the WIFI.
Request provide solution.