Cannot connect to ANY servers

[Othersider]

Recently, I've started having a major issue that's making me want to throw my computer out the window.
The other day, I wanted to play some KF on my favorite server. No problem, I start connecting and it begins to download a map -- then stops about half way through and disconnects my internet. I checked my router, and it was completely fine.
So, I reconnected to the internet and gave it another go. Same result. I repeated this about 5 times until I was ready to punch my monitor.
I tried deleting the system folder and validating game files, nothing. Tried restarting my computer, nothing. Tried reinstalling, nothing. Tried a complete reinstall, deleting all folders and the reinstalling, and STILL nothing.
Somebody help me out before I end up buying a new computer.

[BenioX]

1. Was the game full?
2. Did solo work?
3. Did you try make own "server"?
4. Did you try just one server?
5. Was the ping of server "N/A"?