“No modem detected” message on the DM100, DM125i, DM175i and DM300C, DM400C

Learn how to resolve a "No Modem Detected" message on the DM100, DM125i, DM175i and DM300C, DM400C.
Products affected: DM100, DM125i, DM175i (P725), DM300C™, DM400C™ (G925, G9254, SG925)


When attempting to add funds, perform a data capture upload or a system update, the message No Modem Detected or Modem Not Detected appears and the franking machine is unable to connect.

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 port location
Analogue port location

UPDATED: 02 February 2023

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