Why am I not getting into online mode? Usually it loads forever and then there's "unknown network error" and when I come in I fly out a short time later for the same reason. It is not because of my Wi-Fi that all other games work great
With such inaccurate information that you can get nobody really can help contact Rockstargames Support and if that didn't work then Microsoft Support
It could be on the servers, but I'm not an expert at it