Please check your connection speed, if it’s normal and you still can't push anything, it might be caused by some firewall or VPN setting.
Sympli Versions operates standard HTTPS port 443 for API calls and uses Git protocol port to actually communicate with Git backends (port 9418). Please check or ask for help from your network administrator to have port 9418 open for outbound connections for versions-git-prod.sympli.io.