"Modem not detected" message on the DM50, DM55

Learn how to resolve a "Modem Not Detected" message on the DM50, DM55.
Products affected: DM50™, DM55™ (K724)


The messages Modem Not Detected or No Modem Detected appear when attempting to add funds or a software update.

Important: Analogue connections are no longer available as of 1st January 2023. Please order a SmartLink Device to maintain your connections to the Pitney Bowes Data Centre.


There may be an fault with the franking machine's internal modem.


Am I digitally connected?

If you have a telephone lead connected to the analogue connection port, change your connection method to a digital connection.

Analogue connection port

UPDATED: 20 January 2023

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