Power up failure

I have the 1TB white light model setup on my home network.   I use it for itunes and system backup of my Macbook running Snow Leopard.

I recent had to use the reset button on the back of the hard drive (I forgot my password for the web interface).  NOw ever since I did that, the drive will not powerup correctly.

When I plug in the powercord, the front light turns on, I can here it spinning up, but after 25-30 seconds, it turns back off.  I have done the obvious things of double checking power cables, and plugged it in directly to a wall instead of a UPS.

Any ideas would be a great help.

A silly question have you pressed the button on the back after you powered it and it shutdown it should then power up. M