I have spent countless hours trying to share my internet connection from one desktop (Windows 10, equipped with a Wifi card) to another (not equipped with a Wifi card), and I have finally found a solution that has worked every time for me. I can share from Windows 10 (should work with Win7 too) to any other ethernet equipped device, Windows and Mac. It is bizarre and roundabout, but I haven't seen anyone post anything quite like this so I'm putting it out there anywhere I can.
All you need to do is follow the simple instructions below.
Okay, so:
-Open Internet settings, view network connections
("Change adapter options").
-Right click on your Wifi adapter, go to properties. Go to the sharing tab and disable network sharing if it is enabled.
-Close the properties window, then select your Wifi adapter and your Ethernet.
-Right click and make a network bridge between the two.
-Select the network bridge and disable it.
-Delete the network bridge.
-Right click your Wifi adapter, click properties. Go to the sharing tab and enable sharing again (make sure both boxes are checked).
-Go to the settings tab, make sure all of the boxes are checked except for "Microsoft Network Adapter Multiplexor Protocol".
-If you have online games that use PunkBuster, reinstall PunkBuster.
Any time your network sharing stops working, simply repeat these steps to get it back up and running.
And that's it. If you've followed all these instructions, it should work. Again, I don't know how or why, but this has worked 100% of the time for me. Hopefully this saves some people a headache!
@Griffin why would he do that? That's the opposite of what he wants. – Hellreaver – 2019-09-28T22:37:40.663
1A better title may be "How can I make my PC become a hotspot. – Griffin – 2013-03-09T15:07:24.257