Connecting Android Phone/Tablet to Ad Hoc Network [duplicate]

This question already has an answer here:

• How to make an unrooted phone use or detect Ad-Hoc Wi-Fi 1 answer

I have a PC running Windows 7. I have a Galaxy S3 phone and an Android Tablet running 4.2.2 I believe. I have set up an ad hoc network, and have a few problems. First, my ad hoc network isn't sharing internet connection. Second, I haven't tried my phone, but my tablet won't recognize my ad hoc network unless I input the information manually, and then, it just says not in range.

How might I solve this?

Also, my PC is running a VPN if this changes anything.