Hi joetim1,
My name is Merlina, I am an Independent Advisor and a user like yourself. I'm Sorry to know that you're having this issue. I apologize for the inconvenience. I'll do my best to help you.
if the Realtek driver didn't reinstall after your pc restarts, it is possible that you have a problem with your existing Realtek driver and you need to download and install a new driver from your PC Manufacturer's website(Lenovo, HP, Dell, etc). Make sure you download the correct driver version that matches your operating system and computer model. After this, restart your PC and then check.
Other steps to try:
https://support.microsoft.com/en-us/windows/fix....
Regards.