MyBook Live Duo cant change from RAID0 to RAID1

Hello , 

I want to change the Store Settings from RAID0 to RAID1. 

The Process runs 7 Hours and in Step 3 the IE Site closes and when i look in the Settings again the there is no change. 

Allways RAID0 . 

Thanks for Help . 

Have you got a copy of the Data on the drive elsewhere? If so, then you could try doing a factory restore of the device before trying to switch the RAID method.