Inside the router settings you can block specific websites for a certain internal IP/MAC address. Since Runescape is blocked across all the computers you've tried, I'm going to assume that he just set www.runescape.com to be blocked across all IPs. One way you can test it would be to try and get to the Runescape website through a proxy, although I don't recommend actually logging into the game as all of your data would be sent through a 3rd party. If you can get to the runescape homepage through the proxy, then it's definitely what I mentioned earlier. The bad news is that there are only a couple options to try and fix it. One option would be to log into your router's settings page and remove the restriction, while the other option would be to re-flash the router's firmware. Option two basically nukes the router back to its factory settings, but if done incorrectly it could brick the router so I would recommend against it. Option one would require you to know the router's login and password, but there's a chance that they might still be the default username/pass is your brother is as lazy as me. The general steps to login to any router are as follows: 1. In the address bar, type in: http://192.168.1.1 (basically, the IP address of your router) 2. Type in the username/password 3. You're in, try to find where the restrictions are set The IP address of your router may be different than mine, you could try googling for your specific router. The default password for Linksys routers are usually some combination of 'admin'. Try using admin as the username with the password blank, and other combinations of those. However, if the username and password were changed then it's pretty much hopeless.