Hey everyone
I may have found a solution to all your connection problems. Like all of you I've tried all sorts of solutions and the conclusions came out negative. So I decided to try port-forwarding and it worked.I recommend only port-forwarding the ports of the server you will actually use because it's much safer. If you do not know how to port-forward, I recommend checking out a video for that.if you have any questions just write them in this thread.