• I have done evrything, tested and good.. but it still wont let me play any games... 603 and 612 err codes
  • 612 is usually an indication of a DNS error. You may need to put in the same numbers for the DNS servers that your computer uses. you can get these numbers from your ISP's tech support.

    Before doing that, however, try a simpler solution- unplug the modem for a few seconds (10 or so) then plug it in again. If you didn't power it down before making the switch it can cause problems with connecting.