How do I handle issues when trying to log in to PrintOS through the Command Center client after proxy configuration?
Ensure that your configured proxy server can route connections between the Command Center Client and Server. Confirm that ports 8443-8449 and 8080-8089 are open on your network firewall for proper operation.
From the official HP Smartstream Software For HP Jet Fusion 3D Printers manual, page 16
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