What causes the Host is down error when doing a mount?

Question

linux

On one of the servers (Debian 7) when executing the command:
mount -v -t cifs -o username=myname,password=mypass,domain=mydomain,vers=2.0 //myhostip/myfolder /mnt/myfolder
an error occurs: mount error( 112): Host is down
However, on other servers with Debian 10 and Ubuntu 16.04, no problem.
Please tell me what utilities this command uses, maybe it's worth trying to update them to a new version?

Answer 1

Try vers=1.0 or vers=3.0
looks like a protocol mismatch