Router keeps restarting

I have a D-link DI 624 wireless router.

The problem is that it keeps restarting every 10-60 minutes when Emule is running and connected to KAD.

If I disconnect from KAD, there is no problem.

I had the same problem with my previous router, a D-link DI 614.

Does anyone have a clue about what the problem could be?

I currently have a Di-614+ and the way i fixed my problem was by lowering my Max connections to around 200 - 150. then limiting it in "5 sec" to 10

thanks! i will try that.