Mac Popup Error "Failed to contact the Popup Server."

If the client workstation firewall is enabled you must disable it or add a port exception. The port used is 28203.

Spaces in the Spool Queue Name

If the Pharos Spool Queue Name has a space in it e.g. "BW Queue" when entering this into the popop:// URI you will need to escape the spaces for the popup to function. "BW Queue" would become "BW%20Queue"

Network Issue

The Mac is not capable of connecting to the server by name. To confirm this you should ping the server via a terminal window on the Mac client and confirm you can ping the server by name. If not you can use the IP address of the server in the popup:// URI.

Incorrect Queue Name

If the Spool Queue name has changed and/or a change control has not been completed you will receive the error. Check the Pharos Administrator --> System --> Alerts for messages from Mac clients. To resolve this create a new printer on the Mac with the correct Spool Queue Name or rename the Spool Queue on the server to match the client and perform a change control.

Additionally, also make sure that the user is connected to the correct Wi-Fi network, and that a DNS entry for the Pharos server is not missing. As we have seen these being a reason behind the cause of this issue.