Time Machine - Troubleshooting
C14 "Backup volume could not be mounted."
Time Machine - Troubleshooting
C14 "Backup volume could not be mounted."
You may get this message after changing a network volume's password.
If the password has been changed since Time Machine was configured, you may not be able to back up to it.
See this Apple article: Mac OS X 10.5.3 or later: Time Machine - "Backup volume could not be mounted" after changing network volume's password