I'd be happy to walk you through install and running of steamwatch, hit me up on steam, I am on the steam TOG groups, general and team fortress 2.
Essentially, go to the page mentioned earlier: SteamWatch 2
Download steamwatch 3.
Find it in your windows menu, and start it in the tray. Go down to the tray, right click and select edit settings I think it is. Edit the IP addresses so they are Gamearena servers IP addresses.
IP addresses for :
Simply add those 2 IP addresses, not the names.
Then make sure steamwatch is running before you do a download.
Also you can download tcpview program ( TCPView for Windows
) and run that and it will show what is connecting, and watch it try different steam content servers and then try another, and settle on a ga server. Peace of mind.
hit me up on steam if you are still having trouble, need a hand.