One concern that (as far as I remember) hasn't been mentioned is the fact that some ISPs put blocking settings on routers. Router configuring can be quite frustrating, as some of the terminology is almost indecipherable.
The following is a generic how to for accessing router configuration. Do be careful if attempting this. I originally wrote it as part of a help txt for another online game.
Open Command Prompt window and type in ipconfig
Hit enter.
Look for the ip associated with default gateway. Write it down.
Open a new browser tab and type the number in. Mine is 192.168.200.1
Hit enter. You'll be taken to your router's management. You may have to sign into the router settings window. If no one has messed with it, you can probably get the default admin name and password on the router manufacturer's website. Some ISPs change these. In many cases, they write them on a sticker on the bottom of the router. If not, you may have to contact your ISP.
This is more WGT specific.
Look at firewall configuration and network settings. These are often where ISPs take an overly careful approach. Most if not all manufacturers have a method on the configuration page to backup settings. Make sure to do this in case something you do really fouls the system.