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Lexmark MS810n / MS810dn / MS810dtn

Troubleshooting Intermittent Network Dropped Connections on a Lexmark Laser Printer/MFP


This article will help you troubleshoot intermittent dropping off the network connection problems involving Lexmark laser printer/MFPs.

Affected printer models currently identified are listed below:

Color Single FunctionColor MFPMono Single FunctionMono MFP
Lexmark CS310 Lexmark CS410 Lexmark CS510

Lexmark CX310 Lexmark CX410 Lexmark CX510

Lexmark MS310 Lexmark MS312 Lexmark MS315 Lexmark MS410 Lexmark MS415 Lexmark MS510 Lexmark MS610de / MS610dte Lexmark MS610dn / MS610dtn Lexmark MS710 Lexmark MS711 Lexmark MS810de Lexmark MS810n / MS810dn / MS810dtn Lexmark MS812de Lexmark MS812dn / MS812dtn Lexmark MS811Lexmark MX310 Lexmark MX410 Lexmark MX510 Lexmark MX511 Lexmark MX610 Lexmark MX611 Lexmark MX710 Lexmark MX711 Lexmark MX810 Lexmark MX811 Lexmark MX812


Lexmark laser printers that show the 900.00 firmware errors are intermittently failing over the network. After turning off the IPV6, the 900.00 errors clear and a new error is observed but more devices are still failing over the network.


Update the printer’s firmware with the latest EC4 release code or higher.

How to download firmware

  1. Go to

  2. Type your printer model in the “Enter Product Name” field and click

    OR click on the picture of the correct printer model shown.

  3. Locate the “Downloads” tab.

  4. Select the version of the Operating System.

  5. Click the link available under "Firmware".

Once you have the latest firmware downloaded, proceed with any of the options below to perform the update.

Firmware Flash MethodsInformation
Embedded Web Server (EWS) RecommendedOpen a browser and enter the IP address of the printer. Select Settings > Update Firmware.
USB utilityxref_SO4667_xref for the detailed steps.
USB thumb drivexref_HO3453_xref for the detailed steps.
FTPxref_HO487_xref for the detailed steps.
Printer File Loader (USB-Macintosh)xref_HO3465_xref for the detailed steps.

If the error persists or you are having difficulties performing the update, please contact Lexmark Technical Support.

Still Need Help?

If you require additional assistance, please close this window and locate

Get in Touch with Lexmark! for contact information.
When calling for support, you will be asked for your machine/model type and serial number (SN). If you need help locating your printer's model type and serial number, xref_HO3870_xref or xref_HO3864_xref or xref_HO3865_xref.

Please be near the products described in this article to expedite the support process and reduce callbacks.


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