Continuing issue with wireless.

Firstly, I was not sure if this belonged here or in the hardware section... but okay.

For almost a year now I've had an ongoing issue with my wireless. Once or twice a day for an amount of time ranging from 15 minutes to a few hours the speed of my connection will degrade dramatically and in most cases web pages will time out while loading and online games(EVE online) will become unplayable.

A few facts about the problem:

-This seems to be isolated to one specific machine, as nobody else in the house has complained.

-I am using the standard issue Verizon router, the MI424 rev D and my service is Verizon FIOS.

-I have called Verizon and got the standard "Welll, er factory reset and buy more bandwidth" response.

-I have have performed a factory reset on said router, to no avail.

-It is not correlated with any game or program running. It happens no matter what is running, regardless of what is running in the background.

-I have already changed wireless adapters, with absolutely no change. The first one was a TEW-647 GA and I am currently using a Rosewill RNX-N300X

-This computer is in the opposite corner of the house from the router, but still gets a usable signal. My laptop and my tablet both connect perfectly without this issue in the same room.

My next step will probably be to replace the router. I use the Verizon one because of the on-demand TV service that apparently requires it.

Thanks in advance for any responses and any thoughts!

Thanks for the welcome and the reply!

I will follow the tutorial and see what happens.