I have two 1TB MBWE units that have been working for over a year now with no trouble but now one of them seems to be freezing. The blue lights will stay on but the IP address on my network drops and I can not turn the unit off except by disconnection the power. The unit will power up after I put the power plug back in but not the way it says in the manual - press the power button until the LED flashes once and then release. The LED does not flash but if I release the buton after a couple of seconds the unit will boot. My router software recognizes the unit and assigns an IP address. I can then access the unit form Windows Exployer or turn the unit off normally and restart normilly but after 30 min. or so running the IP address drops and I can not access the unit or turn it off unless I remove the power plug. What can I do to fix this.