I'm not going to start hacking based on a back-up bypass that probably doesn't work, based on the comments.
Have you guys tried his suggestion?
Fix for Steam Connect Failed: Close Steam. Delete the clientregistry.blob file from the Steam folder, then restart Steam.
If that doesn't work, try moving the steamapps folder from the Steam folder to your Desktop, then completely reinstall Steam. After Steam is reinstalled, close it out then move the steamapps folder back to the main Steam folder, then open Steam back up.
In the corner, plotting the annihilation of mankind
Try adding a space to your nickname (Steam>>File>>Settings>>Friends).
For example: My name in game is SoapOnARope. I used Soap On A Roap as my name, and it fixed the kicking. Everyone try it. NOW! lol
When live gives you lemons... IT'S TIME TO COMMIT SUICIDE
well... my name is "aim for the bot"... i dont think i can add spaces to it, but I will try to change the name to see if that does it(btw, i am with the boat of ppl that has steam connect failed notice)
changed my name to " Is Aimbot"-> joined a server and game ended about 2 min after i joined (so i completed a game) waited for next match to start, then after about 3 mins->steam disconnect. I am now doing some private server test to see if it still would kick me or not. So far looks ok under private server (about 10 min in)
Do you know how to read? you first click on the first page of the thread and read through it THEN you ask questions. Even the title says it all