Diagnosing permission problems with Cobian Backup to network share

It is because you are running the program as a SERVICE. By default Cobian installs as a SERVICE. Re-install the program as a APPLICATION and the problem will go away.

NOTE: If you have created a few tasks make sure you Save/export them from the file menu before you uninstall Cobian so you can re-import them after the uninstall re-install.

I am having the same problem. I found a ugly workaround, but works for me.
If anyone's interested, it's below, copied from here.

Hi !

To circumvent the Cobian behavior [to replace a foldername with it's UNC representation for a destination] one can do this:

Part 1, some config:

• CD into the Cobian installation folder

• create a directory, say mnt [like unix mount]

• Use Cobian, open a task and change/create the destination as usual, to "C:\Program Files (x86)\Cobian Backup 11\mnt\toBackup" [don't worry ;-)]

• after this, remove the "toBackup" folder in windows explorer

Part 2, create s pre/post job for the task.

a) pre-event

• map a network drive, but just the UNC name, WITHOUT directory, like this:

  net use \remServer\remShare /user:username password [one may verify this through >net use]

• use LINKD to map this network connection into the previosly created subdir [mnt]:

  mklink /d "C:\Program Files (x86)\Cobian Backup 11\mnt\toBackup" \remServer\remShare [regard the identical name for the "toBackup" destination]

If this has beeen executed in the pre-event, Cobian see's the remote drive in the local subfolder [for which it was configured].

b) post-event

• rd /s /q "C:\Program Files (x86)\Cobian Backup 11\mnt\toBackup" [dont worry: This does not delete your files! {1}]
• net use \remServer\remShare /d /y

Keep these commands in exact this order.

Everythings runs fine this way, because the cobian process does not need authentication. Note: This needs Windows7 or Windows Server 2008 R2.

An ugly workaround, but does the job. I can not understand, why Cobian can not directly open network connections to a server under a specific username. It is not that complicated.

Best regards,

++mabra

{1} Make proper tests. I'll not give any guarantee here. It was just working properly for me.

If you are using a cloud storage device, like WD Cloud, instead of a domain related server, all you have to do is make sure to match the SAME username AND password on both systems. That is, create a LOCAL user, like "BackupUser" with a password, set that as the login user for the Cobian service, then go to the cloud device and configure the SAME username and password there as well when securing your cloud shared folder. This allows Cobian to run as a Windows service, which is better because a local user doesn't need to be logged in to keep your machine backed up.

I can solve the problem like this way:

http://www.cobiansoft.com/cobianbackup_faq.htm#24

Q: Installing the program as a service, I get an error in the log file. 
    The program cannot access a network drive. Why?

A: In order to access a network resource, the service cannot be running 
    as the local system account. One way to fix this problem:
  * Uninstall the program.
  * Install it again, but select the option "Use the following account".
  * Then you can enter a valid user ID and a password. This account must 
    have permission to access the network drive.

The other way:
  * Just go to the Options dialog box and re-enter the logon settings there.

I found the solution on the Cobian Backup forum: Cannot create the destination directory - Results in "The filename, directory name, or volume label syntax is incorrect".

Make Windows open the share using credentials with write permission. This can be done as pre-backup event in the Cobian backup task definition.

To do this open a command prompt and type the following string - note values enclosed in <> are to be modified to suit your needs:

net use </PERSISTENT:YES> \\<SERVERNAME>\<SHARENAME> /user:<USERNAME> <PASSWORD_OR_*_FOR_PROMPT>

This worked simply by running the task using the administrator credentials. Find that in the Advanced options of your task. :)

Just add username and bassword to the "run task as another user" and enter the same username and password for the user that have write privilege. forum.cobiansoft.com.

Cobian 11 how to backup on NAS share and any other network share

Just wanted to remember all of you that in each and every single Cobian' backup task

the last option is "Advanced"

In the "Advanced" tab you can set the user for that task with the respective password

Note: not necessary to have that user name in the current Windows environment

If these fields are filled, in the log you'll read THIS user loggin into the remote share

No matter if you run Cobian as Service or as Program

I resolved it by right clicking on the task, then Edit task, Advanced, Run the task with another user. Then I put username, domain, and password again, my Cobian started with this error when I changed the user password, before that it was ok.

The same problem. It happend when a I lost my network connection to NAS. (reason was different time, Thecus vs. MS Server)

Try to restart servicees in Cobian menu

Menu/Tools/Options/Global/Button-ServiceAndAplicationCOntrol

stop/start - shadow copy - Mains systém services.