Friends cannot connect to my Hamachi or portforwarded servers: error failed to connect after 4 retri

[CaptainMKirk]

Ok, I'll try to make this post a little brief, I can't figure out why my Gmod servers aren't allowing my friends to connect. Every time they try they get the failed to connect after 4 retries error.

What's weird is that a week ago my Hamachi server worked just fine. I had my 3 friends connect to my Hamachi channel (which they are still in), I started a 4 player multiplayer prop hunt game on office, and it worked just fine. We were able to play prophunt, sandbox, and murder on various maps. I didn't change any Hamachi settings, Gmod settings, or internet settings the next week besides portforwarding gmod for a server, and downloading a few extra maps and hide and seek the gamemode. I believe it is my own computer's issue because 3 people are having the same connection error ONLY to my server. They can connect to other servers with me, just not my own.

I don't understand why it won't let anyone connect to my server. I believe I got the correct portforward (27015) and pointed it at my computer. Any help would be much appreciated! Thanks for reading,

-CaptainMKirk

edit: I can connect to the server and everything runs smoothly, however I can't get anyone to join!

[c👌de_g🎷]

Check your firewall settings.

[CaptainMKirk]

my firewall is off!

[Rubat]

There are 3 firewalls that might block your connection: Router one, Windows one and your antivirus one.

[CaptainMKirk]

Ok, I turned off all firewalls. I dont care if it isn't exactly safe, I can handle that. The point is that my hamachi server WAS working and now it isn't. I don't understand how that is possible!