My Book World Edition Bricked?

Ok, can of worms time…

The user guide says that the reset button will only reset device name / passwords / DHCP. Full factory reset (wipe data) can only be done via Network Storage Manager, which was inaccessible due to failed login.

So I pressed the reset button and then connected directly to my PC, and found the odd message had gone and I could log in - not sure which of those actions corrected this. I then logged in to Network Storage Manager and ran a Restore Factory Default (Advance Mode / System / Restore Configuration) to wipe all data - back to square one.

Connected back to wifi router, mapped, set static IP, disabled HDD Standby, and set up / started a new backup plan in WD Anywhere Backup. So far so good.

After several hours backing up happily, I noticed loads of these messages on the NSM log (can’t remember whether it was System log or CIFS log):

2014/10/17 09:42:45  read_data: read failure for 4 bytes to client 192.168.1.7. Error = Connection reset by peer

and soon after it disappeared off the network. Power off / on, backup continued for several hours, then this on WDAB error log:

Error Code: 9
Time: 17/10/2014 18:49:01
File: c:\users\jos\documents\photo\2010\twins\elliot\imgp5353.jpg
Additional Info: The process cannot access the file ‘\192.168.1.2\Public\Memeo\My Documents\lastbackuptime.lbt’ because it is being used by another process.
WD Anywhere Backup was unable to back up this file due to an unknown error. This could occur because of a hardware failure on the source or destination device, or due to a loss of network connectivity.

I forget exactly what actions I took then, but it involved powering off / on, trying a reboot via NSM, and the backup keeps resuming with lots of error messages both in the backup logs and the NSM logs. So far it’s been up for about 36 hours, but the latest msgs are:

CIFS log - full of these (jsbe-pc is my PC which is running the WD Anywhere Backup):

2014/10/21 07:40:01  jsbe-pc (192.168.1.7) closed connection to service Public
 2014/10/21 07:26:41  jsbe-pc (192.168.1.7) connect to service Public initially as user nobody (uid=99, gid=1000) (pid 12352)
 2014/10/21 07:24:33  jsbe-pc (192.168.1.7) closed connection to service Public
 2014/10/21 07:24:28  jsbe-pc (192.168.1.7) connect to service Public initially as user nobody (uid=99, gid=1000) (pid 12351)
 2014/10/21 07:16:49  jsbe-pc (192.168.1.7) closed connection to service Public
 2014/10/21 07:09:05  jsbe-pc (192.168.1.7) connect to service Public initially as user nobody (uid=99, gid=1000) (pid 12271)
 2014/10/21 07:04:34  jsbe-pc (192.168.1.7) closed connection to service Public

WDAB backup log - loads of these in red:

10/21/2014 7:11:57 AM: The destination is not available - filename.iso

…and a couple of these in the WDAB error log:

Error Code: 12
Time: 21/10/2014 09:31:15
File: c:\users\jos\documents\video\tv sources\peppa pig images\peppa pig 1.iso
Additional Info: The specified network name is no longer available
WD Anywhere Backup was unable to continue with the backup because of an error detected at the backup destination.  The destination could be disconnected or not available.  WD Anywhere Backup will resume backup once the destination becomes available again.

Despite all these messages apparently indicating doom & gloom & catastrophic failure, the drive is staying up for longer than before, and the backup is continuing (albeit repeatedly stumbling on the same two huge iso files at the moment). The big question is, can I rely on it to provide a robust backup, or is it about to fail terribly and I should bite the pre-emptive bullet and buy a new NAS? And if so, MyCloud or something else? I’ve really hated every minute of this device, and desperately regret the many, many irretrievable hours it has taken from my life, so would rather not go WD again. But then everything else is significantly more expensive, and will they have similar issues? Is it the NAS or the network??

Thoughts / opinions appreciated…