Error when trying to backup to remote disk: "No parameters have been supplied. Use -? to list all the available options." (4293955)

There are several reasons why this might happen, most likely is network-related, here are some possible reasons:

• A change in the network\dns might cause the disconnection to the remote disk. 
• UNC path issues
• Domain Logins not resolving to the Domain Controller

Here are some possible troubleshooting steps you can try:

• Check with the customer his/her network environment, ask if there was any recent change in network or network policies.
• Check if you can connect to the target server/disk.
• Check domain credentials and see if the server can communicate with the Domain Controller.
• Check the machine's host files and see if the server has the IP hardcoded in the file.