Problem backing up to WD My Book Live through VPN

Hi,

I have a problem backing up a Windows 2008 SP2 x32 server to aWD My Book Live through VPN. Here is the log that I get:

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Log Entry Details
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Type: Error
Date and time: 27/12/2011 9:30:57 AM
Backup plan: [None]
Task: [None]
Code: 1,098,842(0x10C45A)
Module: 16
Owner: terminal
Message:
Failed to read the snapshot.
Additional info:
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Error code: 50266
Module: 16
LineInfo: 14181c22ef45ad85
Fields: $module : C:\Program Files\Acronis\BackupAndRecovery\DiskBundle.dll
Message: Failed to read the snapshot.
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Error code: 65520
Module: 0
LineInfo: bd28fdbd64edb8bc
Fields: code : 2147942421
Message: The device is not ready
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Acronis Knowledge Base: http://kb.acronis.com/errorcode/

Event code: 0x0010C45A+0x0000FFF0

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and then:

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Log Entry Details
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Type: Error
Date and time: 28/12/2011 10:36:12 PM
Backup plan: [None]
Task: [None]
Code: 20,250,627(0x1350003)
Module: 309
Owner: terminal
Message:
Command 'Backing up' has failed.
Additional info:
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Error code: 3
Module: 309
LineInfo: 4a8728dc8a1c94f8
Fields:
Message: Command 'Backing up' has failed.
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Error code: 14
Module: 64
LineInfo: a1d3981537c68704
Fields:
Message: Failed to open the backup location.
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Acronis Knowledge Base: http://kb.acronis.com/errorcode/

Event code: 0x01350003+0x0040000E

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