Troublesome DLink DIR-632 Routers

I have had two DLink DIR-632 routers that are having the same problem. They both have to be power cycled at least once and sometimes each day. I have read the reviews on this router at NewEgg and about half the reviews complain of the same problem so I guess I'm stuck with a couple of lemons.

Here's the question: Is there a setting in these routers that would cause something similar to a power cycle at user-defined intervals?

If interested, the User Manual is downloadable from this page.

Thanks for reading.