Internet comnnection issue

I have an interesting situation with my windows 10 PC .. This problem is only about three weeks old .. I have also run various virus programs and report back no virus .

I can be surfing the net etc .. when all of a sudden.. I can get to the first page of a web site but not within .. ( cache situation) ..
My icon down by my clock shows I am connected ..
So I reboot the PC then get a fresh log in after this bootup and the internet is back working again .... but only for an hour or so then back to the same problem/ situation ..
I have found a installed new drivers for my Realtek 8812BU wireless Lan 802.11ac usb connection .. this works fine for a day or two then back to problem.

I can even use the flush DNS scenario in cmd prompt ., offered for win 10 , this works as well in getting me back to the net ..( chrome)
what exactly should I do?
is my Realtek usb run its course after a few years and should be replaced with a new one maybe?
thanks

The first test I would try is to use a different browser, preferably one not based on Chrome. Firefox has a portable version that does not require installation that you can set up. When your Internet connection with Chrome encounters an issue, try using Firefox portable to see if that browser still works. That will help us know whether it is a networking issue or a Chrome issue.

You can also try to ping the Google DNS Servers or a different web site to see if you get a response.

Report back the results for analysis.