"Connection Failed after 10 retries" FIX!

[Rum Tum Tugger]

I'm sick of this message. I have disabled add-ons, reinstalled l4d, and verifyed the cache 5 times at least. I can't join any online server unless its modded for some reason.

I looked around on some forums and i found the best way to fix this is to follow these simple steps:

1. Locate your Steam folder, mine is in C:\Program Files (x86)\Steam
2. Delete ALL folders and files except SteamApps, userdata, and Steam.exe.old
3. Reinstall Steam from their website.

This is what fixed mine, hope it works for you!

[coaghoul🛠]

Try to turn your firewall off.