Not easy, but give it a try
How to resolve the error "104 Unsupported wireless connection…"
If you have an older HP computer, you may receive the following error message when you start your computer:
This is one of those truly technical errors and unfortunately it is not easy to fix. However, it is worth a try before you send your computer back to HP or spend a lot of money on the Geek Squad.
There are a few steps you can take to try and resolve this issue on HP laptops and notebooks. Please note that there are only certain wireless cards that will work with your HP computer, so if you tried to install a third-party card, you will likely need to follow Method 3 or purchase a different wireless card. Good luck!