My friends can't join my server?

[Ferretman]

I have an aotbt server on a pc. It is the latest version. I have correctly portforwarded it and ip has been triple cheaked (private and public). But they still can't connect.

[Loader]

If you go here;

https://www.grc.com/x/ne.dll?bh0bkyd2

And you use a custom port probe on port 25565, what does it say?

[Ferretman]

It says that it is stealthed, but I had switch it from port forwarding both to just tcp

[Loader]

That means you've set up the port forwarding wrong or your own computer has some kind of firewall that's stopping packets getting out.  Stealthed means that TCP, UDP and ICMP all didn't get responses.  Double-check your computers local ip address hasn't changed, some routers by default only keep the ip fixed for a few hours at a time (so after a reboot it often gives you a new one).

[plowmanplow]

To add to the excellent information which Loader provided, you only need to forward TCP. MC does not use UDP so you don't need to forward anything but TCP.