Wifi Not working Properly

I have a Dell Inspiron 15 3510 Laptop with Pentium(R) Silver N50 30 Processor, and I am having an issue with wifi network.

Available network connections will not show, when this occurs, the network driver will be unidentified in the device manager. after restarting the system, sometimes the networks will show and sometimes not, when we reinstall the network driver (Intel AC-9462) the problem will be fixed and again the same issue will repeat within an hour or two.

Support received from nearest service center, They replaced Mother Board, Wifi Card, Bezel, LCD Cover with antennas, and SSD, again facing the same issue.

Problem showing in residence only, checked around 5 days at service center they didn't find the issue i faced. 

If anyone experienced such an issue like this or any solution, Please let me know

A photo attached, taken when the issue occurs.  link of video also attaching for kind of review if needed. 

https://www.dropbox.com/s/0xpjtwjjqj1udkp/WhatsApp%20Video%202022-01-25%20at%208.07.28%20PM%20%281%29.mp4?dl=0 

Picture with problem