I run 'net use /user:"Someone" \somewhere', and it works well with cmd.exe.
With the same cmd.exe, run 'bash --login -i' to use the cygwin/bash, and run the same command but I get the error message as follows.
System error 67 has occurred.The network name cannot be found.
Why can't I run 'net use /user' command with cygwin/bash?
In cygwin's bash, you need to escape any of those forwardback slashes, as those are interpreted as escape characters.
try this
net use /user:"Someone" \\\\server\\share
or use single quotes, which will pass the argument unchanged
net use /user:"Someone" '\\server\share'