A windows host creates a CIFS share and gives access to newuser (newuser is the user on windows host) newuser's password is set as UUUU*123 Windows host has a French Locale installed Now on linux host a mount command is given as follows (Linux host also has a french locale installed) mount -v -t cifs \iwf1113140.ind.hp.com\fl -o username=newuser,password=UUUU*123,ver=1,iocharset=utf8,osec=ntlmv2 /some_share_path The mount command fails with mount error[13] : permission denied. If the password is pure english say 'test123' mount succeeds. following is the locale output. LANG=fr_FR.utf8 Is there any idea why this may be happening?