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- HP Community
- Printers
- Printer Setup, Software & Drivers
- printer M209dw error code setup UU_400_EB000A9900

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09-03-2025 09:28 AM
@jrsthil, Welcome to HP Support Community,
Thank you for posting your query; I’m here to help by guiding you through steps to resolve this issue
The error code UU_400_EB000A9900 indicates a setup issue with your HP LaserJet M209dw printer. Here are general troubleshooting steps that can help resolve setup errors:
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Check Connectivity: Ensure that your printer is correctly connected to the network if you're using a wired or wireless connection. Verify that the Ethernet cable is securely attached if you're using wired connectivity.
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Restart Devices: Power off your printer, router, and the device trying to connect to the printer. Wait for a few minutes before turning them back on.
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Reinstall Printer Software: Uninstall the printer software from your device and reinstall it using the latest version available from 123.hp.com or the HP website.
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Use HP Smart: Install the HP Smart app on your device and use it to guide you through setting up the printer.
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Update Firmware: Ensure that your printer’s firmware is up-to-date. You can check for firmware updates via the HP Smart app or the printer's control panel.
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Check Firewall Settings: Sometimes, firewall settings can block printer setup. Temporarily disable your firewall and try the setup again.
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Reset Network Settings: Reset the printer's network settings and attempt to reconnect to the network.
I hope this helps.
Please feel free to reply here if you have any questions or if you need further clarification on any of the steps.
Take care and have a good day.
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Regards,
Garp_Senchau
I am an HP Employee