I was getting quite used to my WAP4410N rebooting once or twice a day. I even thought Cisco had put a reboot timer in the code that was causing one of the reboots. I was up to date with 2.0.7.4 firmware, and had a simple single-SSID config, with all other settings at factory default.
The kicker was when I upgraded my cell phone to an iPhone 5S. With a few concurrent iTunes and / or AppStore downloads happening, the WAP4410N would reboot constantly. I found that by limiting the number of downloads to one at a time, the AP was stable. The only other regular traffic on the AP is from an iPad 2, and on rare occasions, my Latitude D830 or D620. Not exactly a demanding environment.
I noticed many other WAP4410N users having similar trouble with frequent reboots. Various setting changes were explained with seemingly no universal solution. But...