Failed to connect to DAV server at address ..., port 37453 (4045299)

Title: Failed to connect to DAV server at address ..., port 37453
Date: 05/2010
Product & Version: NVBU 8.5 build 39
OS Version: Windows
Module & Version: NV SmartDisk 1.0.1
Application version:


Symptoms:
When trying a backup to a Windows smartclient with 8.5 build 39 and Smartdisk 1.0.1 or later through a firewall, the backup of the main stream works but when it gets to storing the backup index, the following error occurs:

.
.
.
Storing backup index
Failed to connect to DAV server at address ..., port 37453
Failed to connect to DAV server at address ..., port 37453
Failed to connect to DAV server at address ..., port 37453
Failed to connect to all known addresses for device '....'
Failed to connect to device '...'
Stream has gone down
Failed to write backup index to media
Failed when finalizing the backup
Job manager lost message channel unexpectedly
Fatal Error: Backup Lost Message Channel Unexpectedly
Job Status: Backup Failed
Finished job .., phase 1 (instance ..)

Although NSD-13 (Client Backup fails writing to smart disk when Firewall port range is selected in netvault.) was reported to be fixed in SmartDisk 1.1, it was actually fixed on NVBU 8.5.1, the customer MUST have 8.5.1 installed both on the server and the smartclient and client in order for the fix to be working.

BakBone SFDC Solution Number: 00005649