After last FW update backup still doesn't work properly!

i tried the wdmcex2 internal nas to external drive usb backup again after the last firmware update. 

and again,  it stopped after 99% with a backup failed! 

the same results as last times. 

no improvement at all! 

this time after restart and several backup restarting, i finally got a backup completed! 

how can i trust this backups to work the next time? 

why hasn’t this problem been repaired yet and looked after? 

why is WD not interested in making this option working 100%?

this is my second nas,  but my last WD product! 

and i haven’t even started about the files selection option not working! 

Maybe you should try contacting WD’s Technical Support about this. You can do so either by phone or email.

To Contact WD for Technical Support
http://support.wdc.com/contact/index.asp?lang=en

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http://support.wdc.com/country/index.asp