Apologies if this has been answered elsewhere -- searching hasn't yet solved my problem... Also sorry if this is in the wrong section.
I'm using a laptop computer on a home wireless network and for quite some time now a number of websites don't load. Firefox displays an "Unable to Connect" page saying that "Firefox can't establish a connection to the server at ____"
Internet Explorer says "Oops! This link appears broken. DNS error occurred. Server cannot be found."
This has been getting somewhat problematic.
The pieces of the puzzle that I know:
A desktop connected with a wired connection through the same router can access the same site with no problems.
Likewise, an iPhone connected to the same wireless connection has no problems at all.
The hosts file on the problem computer is clean.
Flushing the DNS doesn't fix the problem.
Reducing the MTU doesn't fix the problem.
Resetting the router, modem, and computer don't fix the problem.
I would greatly appreciate any help you might be able to offer!