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    Home»Apple»finder – Command line network connection fails or is refused Macos 26.2
    Apple

    finder – Command line network connection fails or is refused Macos 26.2

    big tee tech hubBy big tee tech hubJanuary 26, 2026013 Mins Read
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    finder – Command line network connection fails or is refused Macos 26.2
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    I’m trying to connect to my Documents folder on a networked 2018 i5 Mac Mini 32GB RAM from an M4 Pro Mini with 64GB RAM via the command line using the following command:

    mount_smbfs //[email protected]/Macintosh%20HD/Users/ptolemy/Documents" /System/Volumes/Data/mnt/Dionysos
    

    (I have created the mount point on the M4 Mini)

    I get the following errors after typing in the password:

    mount_smbfs: server rejected the connection: Authentication error
    

    or

    mount_smbfs: mount error: //[email protected]/Macintosh%20HD/Users/ptolemy/Documents: Operation not permitted
    

    Google and Grok have suggested changing the password special characters to their URL encoded equivalents. I even converted the entire password to percent encoding at one time. But no success.

    File Sharing and Remote Login are turned on the remote machine. I am able to access the same drive via Finder with no problem. I can also SSH into the same computer.

    When I turned on SMB sharing…for Windows I got the “Operation not permitted” error for the first time.

    I want to write a shell script to attach the remote folder and then mount a dmg file as a local volume on the M4.

    I don’t know what to try next. I would be most grateful for any help.

    $ mount_smbfs "//[email protected]/Macintosh%20HD/Users/ptolemy" /System/Volumes/Data/mnt/Dionysos
    Password for Dionysos.local:
    mount_smbfs: server rejected the connection: Authentication error**
    
    mount_smbfs "//[email protected]/Macintosh%20HD/Users/Shared" /System/Volumes/Data/mnt/Dionysos
    Password for Dionysos.local:
    mount_smbfs: server rejected the connection: Authentication error
    

    I tried the following:

    ptolemy@Zeus ~ % mount -t smbfs //[email protected] /System/Volumes/Data/mnt/Dionysos
    Password for Dionysos.local:
    mount_smbfs: server rejected the connection: Authentication error
    mount: /System/Volumes/Data/mnt/Dionysos failed with 77
    

    Any idea what 77 means?

    ptolemy@Zeus ~ % ptolemy@Zeus ~ % ls -ld /System/Volumes/Data/mnt{,/Dionysos}
    drwxr-xr-x 3 root wheel 96 23 Jan 19:01 /System/Volumes/Data/mnt
    drwxr-xr-x@ 2 root wheel 64 23 Jan 19:01 /System/Volumes/Data/mnt/Dionysos
    

    This is my latest attempt at solving this problem:

    1. I have moved the server address from my Documents folder to Dionysos.local/Macintosh%20HD/System/Volumes/Data/Shared/ and made it read/write for everybody.

    2. I made /System/Volumes/Data/mnt/Dionysos on the local M4 also read/write everybody.

    3. In File Sharing on the server system settings, I added the path to the new location

      Alas same outcome:

    mount_smbfs: server rejected the connection: Authentication error
    
    1. On Grok’s advice I tried this:

    “…Under “Windows File Sharing,” select the account “ptolemy” and enter its password when prompted. This stores the password securely for SMB access.”

    After doing that, I now get the following error message:

    mount_smbfs: mount error: //Dionysos.local/Macintosh%20HD/System/Volumes/Data/Shared: Operation not permitted
    
    

    I’m at my wits end.

    Thanks @nohillside. Ran the command as suggested:

    ptolemy@Zeus ~ % xattr -l /System/Volumes/Data/mnt/Dionysos
    com.apple.provenance:
    

    Don’t understand the output. Shouldn’t there be more attributes?

    Also I have tracked down the logs on the M4 Zeus and have copied all 1800 lines containing smbfs to a text file. Apologies, I don’t see a way to upload a file. Cheers.



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