Just like robkraft, I have tried a paperclip in the reset hole without success. Connecting power and/or ethernet makes no difference. This camera previously worked; now it has a blinking red light on the front, a steady blue light on the rear, and cannot be found or installed to any network.
Is it defective, should it be returned? Is there any other way to reboot it?
I experienced the same symptoms you are describing with my DCS-932L and ended up calling D-Link technical support. They were unable to resolve the issue, so I was issued an RMA. The replacement camera should arrive in a few days.