TOHIGHSCHOOLGUY: i can only try had a good idea. download hijack this. EDITED BY MODERATOR – NO LINKS ALLOWED
run it. when you run it you will have a choice to run and save reg file. do that. when it is done, copy content of reg file here, and i will look at it for you. (i sorta do this for a living). i should be able to figure out what is wrong. at %100 percent, you either have a legitimate piece of software that need to be uninstalled and reinstalled, as it is hanging, or the more probable answer, a virus or spyware.
on another note, for those who think that mac locking is bad, it actually is the most secure locking feature for a router. its reversing the allocation of security features from the user side, to the router side. this would be akin to using a firewall with usernames and passwords at a business. it does become a pain when someone comes over and need to use your wireless, but in truth, how often does that happen. and when it does, you just add that persons mac to the filter, and your in business. it is the safest way to block children from possibly connecting to the router.
also when you setup a password, dont make it one of your kids names, or your job title, etc. make it random. it should have 8 characters including a cap letter, a number and a symbol. total randomness makes it almost impossible for hackers to get through, at least speedily. (ex. s#gpW9hX).
again, TOHIGHSCHOOLGUY, run and paste the hijackthis data here, and i will tell you what you need to do.