Okay, I think I'm understanding why you said/typed that first sentence. My friend isn't able to join me, even after I have the hostname and IP right. We have the right GZDoom version (4.5.0), we have the correct PWAD (we were going to test with Reelism Gold and that PWAD alone), but we always end up with the same results: Waiting for players and Contacting Host. We were thinking of using a VPN, but even that's confusing. I know Hamachi is a good choice, but I'm confused about how that works. The same goes with the port setting. What else can we do?