I am a corporate user, I have multiple users tried in different models and they all have similar issues, so it is very likely the issue is from Windows OS.
Sometimes in my 4 G connection , it shows " please insert sim" , sometimes it shows " cannot connect to this network, Mobile data is not working properly, try again later."
This issue could be resolved by either restart, or reinstall driver manually.- this had ruled out hardware faults
The APN setting was selected to be managed by Windows .
My laptop has been applied the latest OEM drivers officially from manufacture, I am running Windows 11 now, however, the same issue did also occur in Windows 10.
Does Microsoft have any permanent solution for this issue?