How does a firewall affect printer connectivity and the '0x00011b' error?

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Grade: Education Subject: Support
How does a firewall affect printer connectivity and the '0x00011b' error?
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A firewall might be blocking communication between the computer and the printer. Temporarily disable the firewall to see if that resolves the issue. If it does, add an exception in the firewall settings for the printer's IP address and port (usually TCP port 9100).