By default, PeerBlock will block Blizzard and Steam servers.
This will kill off your access to Starcraft II, World of Warcraft and Left 4 Dead! Not acceptable!
To prevent that, add then to the whitelist.
- Click on "List Manager"
- Paste the following URL: http://list.iblocklist.com/?list=blizzard
- Change to "Allow"
- Click OK.
Repeat the process for the Steam list: http://list.iblocklist.com/?list=steam