Solved the problem. :)
Just thought I'd give people one more possible solution to try if they're having similar problems.

I discovered that Zone Alarm randomly started blocking my browsers. (even...

That didn't solve my problem, I don't use that service, and it wasn't in the list of services.

Thanks though :)

Another bit of information.
Ran the ipconfig command prompt at got the following result: Connection-specific DNS suffix: domain_not_set.invalid

Does this information apply?
The TCP/IP is...

I have a similar problem and tried the above solution, unfortunately it didn't solve the problem
I am on a home network with DSL connection running through a Linksys wireless access point router. My...