godaddy.com would cause my router (Mikrotik) to lock up intermittently, never figured out what it was but it would happen if I was doing multiple name changes, seemed to be related to their javascript and the time delays in refreshing a page after submitting data. One other site with lots of active server pages would do the same thing. I did a firmware upgrade and that cured the problem.

Back when I used Linksys products I noticed that they did not like to upload data at a steady rate, mine would lock up every time I tried streaming video from a surveillance camera, ended up limiting the camera to 64k even though my ISP let me have 128-256.

I've had voipo about 8 months now and have had to reset my RT 2 or 3 times.