N450 - Crashes/reboots itself every couple minutes

I have been running tthe N450 for a little over 3 months now with little to no problems. A couple days ago I noticed that I was randomly having connection issues.  Upon further inspection I noticed that my route was crashing or rebooting itself.  I thought it was a bit odd, but now it seem to do it all the time.  Sometimes operation for as little as 2-5 minutes befor it crashes or reboots.  I have even watched it crash when no computers where on and no wireless devices connected.  last night it crashed atleast 10 times, making it very difficult almost impossible to stream a show on Hulu.  The crash/reboot sequence is a follows:

1. normal operation

2. LEDs on router turn solid

3. connection is lost, LEDs blink anout 24 times

4. router statup sequence

5. connection is restored and back to normal operation

 I have been trying my best to troubleshoot the problem.  I have unpluged it atleast a dosen time, and even plugged it into a differant outlet. The firmware is up to date.  It crashed when there was no devices connected, so I don't think it is someting on my computer. The frequency of the rebooting has me ruling out ISP connection problems. Before I resort to a factory reset, I want to see if any one has had a similar issue or any ideas of what I can do to resolve.  Thanks for the help!