Question:
What can be the reason for the following error message 721, when the two remote maintenance components Ethernet/CAN EMF 2180 and ModemCAN EMF 2181 are applied: The connection could not be established because the remote computer did not respond to the connection request.
Answer:
This Windows error message is passed on and displayed by the Lenze softwaretools 1:1.
Possible causes:
- Make sure that TCP/IP is installed and configured correctly for this connection.
- Make sure that all protocols required for this connection, are installed.
According to our experience this problem can be solved by uninstalling the Internet protocol (TCP/IP) in Windows and reinstalling it then.
