Mount error (112) - Host is down, specifying SMB protocol version does not resolve issue

ar flag

Hoping someone can help.

I have previously been able to mount a local network drive to my server (was running Ubuntu 16.04.7, now running 18.04.6). However, recently when I try it gives the following error:

mount error(112): Host is down

I use the command below to mount:

mount /mnt/directoryname

My fstab looks like:

//network/share/ /mnt/directoryname cifs uid=1000,iocharset=utf8,file_mode=0777,dir_mode=0777,noperm,noauto,user 0 0

Having read through previous posts with similar issues, I have attempted to force the use of specific SMB protocols (1, 2, 2.1 and 3), using the following fstab (in this example for version 1):

//network/share/ /mnt/directoryname cifs uid=1000,iocharset=utf8,file_mode=0777,dir_mode=0777,noperm,noauto,user,vers=1.0 0 0

No matter which version I specify I continue to get the same error.

If I comment out the line in the fstab and attempt to mount via the command-line I continue to receive the same error. Below is the mount options I use:

sudo mount -t cifs //network/share/ /mnt/directoryname -o username=myusername,vers=1.0

I have also seen the addition of "defaults" to the fstab options:

//network/share/ /mnt/directoryname cifs uid=1000,iocharset=utf8,file_mode=0777,dir_mode=0777,noperm,noauto,defaults,user 0 0

but that just produces an invalid argument error message (so perhaps I added it incorrectly).

I'm not sure what to do now. I can connect to the network drive via my PC and the webpage. I can ping the network drive from the server. Therefore, I know it is up and running.

I have tried using smbclient as well:

smbclient //network/share/ --user=MYUSERNAME

That gives the following error:

protocol negotiation failed: NT_STATUS_CONNECTION_DISCONNECTED

Which possibly has more to do with the fact I don't really know how to use the smbclient command but may be indicative of an associated issue.

If anyone has any ideas, please let me know.

Thank you for reading.

ETA: correct mount command when commenting out the fstab line

in flag
Ubuntu 16.04 has already reached it's end of life, it does not get security updates anymore. You should upgrade to a supported release.
Magpie avatar
ar flag
Thanks, I'll try that and see if it resolves the issue.
Magpie avatar
ar flag
I have now upgraded to 18.04 and I am still having the same issue.

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