Fatal Error

Hi everyone. I find an issue when I try to push to gitlab using regular internet service but when I connect to a VPN Im able to successfully push the updates to gitlab. The error message received is:

Enumerating objects: 8166, done.
Counting objects: 100% (8166/8166), done.
Delta compression using up to 10 threads
Compressing objects: 100% (8150/8150), done.
send-pack: unexpected disconnect while reading sideband packet
Connection to gitlab.com closed by remote host.
fatal: the remote end hung up unexpectedly

Can someone explain me why I get these errors when I try to push with regular internet and not vpn?