Joseph2 wrote:
Why does the system abort most of my games before I start playing?
Probably because you have a weak unstable connection.
https://support.chess.com/customer/portal/articles/1444849 says that "we only allow members to play if their detected lag is two seconds or less". If you sign up to play and you have lag higher than that, your game will be aborted.
Why does the system abort most of my games before I start playing?