Hello,
If your friends can create a server and you cannot join or create a server, I suspect it has something to do with ipv4
You can try to join via dns instead, for example you want to join server 3.86.35.253:46208, you'll need to input dns endpoint instead:
US: ec2-3-86-35-253.compute-1.amazonaws.com:46208
ASIA: ec2-3-86-35-253.ap-northeast-2.compute.amazonaws.com:46208
EU: ec2-3-86-35-253.eu-central-1.compute.amazonaws.com:46208
SA: ec2-3-86-35-253.sa-east-1.compute.amazonaws.com:46208
This might work