Linksys Wireless Router :: WRT54GL Broadcast Keeps Cycling On And Off

I've had a WRT54GL ( for about a week now ) with no real issues.  Today my wife mentioned that the net's been flaky  ( wireless nto hard wired ).  I originally noticed what seemed like minutes for my desktop of laptop to connect to any web pages.  Loads were extremely slow.  According to the computer I had a 1 mbps connection.  I did the standard resetting of the modem and router.babble babble babble. Eventually, I ran a wifi analyzer from my phone to determine an ideal channel.  However, while running the frequency scanner I also noticed that my broadcasting would continue to drop off the radar for a quick moment then return.  This seemed to be true no matter what channel I set.  What's interesting is that the signal would read as extremely strong for 45 sec - 1 minute, then completely drop the signal, then another strong broadcast. Other neighboring signals don't exhibit this behavior....well I would see the weaker signals coming in and off the radar from time to time. I'm guessing it's some type of interference?  However if that's the case I can't explain why my signal seems so strong.  I'm assuming I'd see a lot of fluctuation in my signal before dropping off ( instead of going from 100 to 0 in the blink of an eye ).