Posted 04 November 2012 - 09:15 AM
Have you recently had any new electronics installed in your house? If you got a new stereo, depending on its size, it should be more than 4 feet away from your modem or router. I just got a new ISP, a wireless kind, and the antenna they set up on top of my house has reduced the signal strength of my router by about 30%. So, think about what new equipment you may have installed in the last week, or what equipment you may have moved.
There is software you can use to monitor the signal of your router, and log it for examination.
Also, it may just be time for a new router/access point.