# Regarding the SMB connection failure problem

**URL:** https://forum.duplicati.com/t/regarding-the-smb-connection-failure-problem/18543
**Category:** UX
**Created:** [June 25, 2024, 4:21am UTC](https://forum.duplicati.com/t/regarding-the-smb-connection-failure-problem/18543 "2024-06-25T04:21:38Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![dreamer](https://forum.duplicati.com/user_avatar/forum.duplicati.com/dreamer/32/5173_2.png) [@dreamer](https://forum.duplicati.com/u/dreamer)
#### Post date: [June 25, 2024, 4:21am UTC](https://forum.duplicati.com/t/regarding-the-smb-connection-failure-problem/18543/1 "2024-06-25T04:21:38Z")

</div>

I encountered a strange problem. A computer has been using duplicati for a while, and suddenly it showed a connection failure in the past two days.  
I tried using other authorized users, changing the service account, adding the host name before the username, etc., but the results were the same.  
Finally, I added  
–auth-password=userpassword  
–auth-username=username  
to the advanced options, then clicked the test connection, and the connection was successful.  
I don’t know why, so I’m sharing this with those who need it.