How to resolve connection errors on the DM300C, DM400C and more

Learn how to resolve connection errors on the DM300C, DM400C, and DM475.

Products affected: DM300C™, DM400C™, and DM475™

Issue

The meter displays one of the following error codes and will not connect:

94, 200D, DE00, DE03, DE04, DE05, DE06, DE07, DE08, DE09, DE0A, DE0B, DE0C, DE0D, DE0E, DE0F, DE10, DE11, DE12, DE13, DE14, DE15, DE16, DE17, DE18, DE19, DE1A, DE1B, DE1C, DE1C, DE1D, DE1E, DE1F, DE20, DE21, DE22, DE23, DE24, DE25, DE26, DE27, DE28, EDE13, No Dial Tone, Data Center Busy, Connect Phone Cord, Link Negotiation Failed, No Carrier Detected, No Carrier Detected Online, Modem Connection to AT&T Failed, Invalid User Id/Password, No Modem Detected, Connection Dropped, Cannot Reach Data Center, Line Busy, and Connection Lost, Intellilink dropped

Cause

The meter is not connecting to the server.

Resolution

You may be able to clear the error by simply restarting your meter. Here are the steps to follow for a safe restart:

Unplug the power cord; wait one minute
Plug the power cord back in, ensuring that it is plugged directly into a wall outlet
If, after rebooting, you are still having connection issues, please see one of the following

For issues connecting over an analog phone line, see How to troubleshoot an analog phone connection on the DM300C, DM400C and more
For issues connecting over a network connections, see How to troubleshoot a LAN connection on the Dm300C, DM400C and more

If your issue is not resolved, contact customer support from 8 am to 8 pm Eastern Time. Have your model number ready.

UPDATED: 01 March 2021