SharePoint backups getting error

So I go into Central Admin > Backup and Restore > Perform a backup…

And I see some errors…

More precisely:

Object SharePoint_Config failed in event OnBackup. For more information, see the spbackup.log or sprestore.log file located in the backup directory.

SqlException: Cannot open backup device ‘\\<Server>\Backup\spbr000200000AD.bak’. Operating system error 5(failed to retrieve text for this error. Reason: 15105).

BACKUP DATABASE is terminating abnormally.

Hmm.. what I have done is to update the folder permissions on the local share to allow all the service accounts I could find linked to SharePoint.. I hope it works and will update on the results.

<45 minutes go by…>

Didn’t work.. will look for another solution.

Update:

Guess what I got this morning…

Object SharePoint_Config failed in event OnBackup. For more information, see the spbackup.log or sprestore.log file located in the backup directory.  SqlException: Cannot open backup device

But wait.. there’s more… I no longer get that message and my backup folder is growing past 20MB

So what is the magic trick.. well none really.. it is just a simple rights issue.. Imagine, getting user account issues with SharePoint … pffff… never.

Solution:

So here is how to make it work: