To all the players out there that can´t connect to other players or disconnect even with a good ping, open the Steam ports on your router.

Here is a website with a list of routers and it explains how to open the ports : http://portforward.com/english/routers/port_forwarding/routerindex.htm

The ports you should open are the ones Steam requires: https://support.steampowered.com/kb_article.php?ref=8571-GLVN-8711

Hope that help!