- Veeam Support Knowledge Base
- Backup to CIFS Share fails with "Failed to call RPC function 'FcIsExists': The user name or password is incorrect."
Backup to CIFS Share fails with "Failed to call RPC function 'FcIsExists': The user name or password is incorrect."
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Starting in Veeam Backup & Replication 12, the error message that will be displayed when the credentials to access the SMB share are invalid was changed. The underlying error is still the same and is recorded in the log file: C:\ProgramData\Veeam\Backup\ResourceScan\Task.GateRepoConnect.log
Errors potentially associated with invalid credentials in Veeam Backup & Replication 12.x:
Failed to find valid gateway server for non-scheduled repository. Failed to check whether file or folder exists.
Processing backup repositories Error: Selected server is unavailable.
Challenge
Error: Failed to call RPC function 'FcIsExists': The user name or password is incorrect.
Cause
Solution
- Edit the Repository
- Select the Share tab
- Click the Manage accounts link under the account selection drop-down box
- Update the credentials used to connect to the SMB share.
Note:
The username must be in the down-level logon name format.
For example, DOMAIN\username or HOSTNAME\username.
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