Hi all, 

I have just purchased the er8411

After about five to ten minutes of being on the unit just seems to go into some sort of hibernation mode and just stops working

There is power going into the unit when this happens as some of the indicator lights to the left of the unit are on but the LAN light stop indicating altogether and I'm booted out of the user interface.

The unit does not seem very hot, 

Any suggestions please 

Have moved the LAN to 5 worked for a bit and then now has just shutdown again (all the indicator lights,  flash and then it's unresponsive )does anyone think it's tripping out on an internal fuse ?