@rtpccs 

No RealTek is one of the chipset makers that TP-Link uses in our adapters, but we are not the same company.  The Driver for this adapter came out in 2018,  Windows has made several "enhancements" to Windows 10 since then, some of which have broke drivers for products.  One thing you can try to do is uninstall the adapter's driver and restart your PC.  See if the computer loads a default driver and if so test it.  If not you can try to see if RealTek has an updated driver, which will work with the adapter, but right now we do not have anything newer, so if its not working and there is not a chipset driver or default driver in Windows the card may now be incompatible.  If that is the case we can try and send information to our software team to see if there will be futher development for this product.