New node assignment for node 4 was received, but the node is already registered - ignoring

[ml_zway]

Seeing the message above every half second in the logs.

Node 4 (Greenwave Plug) is switched off. I have removed failed node under expert/Network Maintenance. It keeps reappearing, and the messages below never stop coming in.

Any ideas how to resolve?

Regards,
Mark

[2025-12-31 11:23:36.055] [E] [zway] New node assignment for node 4 was received, but the node is already registered - ignoring
[2025-12-31 11:23:36.563] [D] [zway] RECEIVED: ( 01 09 00 49 40 04 03 02 02 07 FF )
[2025-12-31 11:23:36.563] [D] [zway] SENT ACK
[2025-12-31 11:23:36.563] [E] [zway] New node assignment for node 4 was received, but the node is already registered - ignoring
[2025-12-31 11:23:37.070] [D] [zway] RECEIVED: ( 01 09 00 49 40 04 03 02 02 07 FF )
[2025-12-31 11:23:37.071] [D] [zway] SENT ACK
[2025-12-31 11:23:37.071] [E] [zway] New node assignment for node 4 was received, but the node is already registered - ignoring
[2025-12-31 11:23:37.578] [D] [zway] RECEIVED: ( 01 09 00 49 40 04 03 02 02 07 FF )
[2025-12-31 11:23:37.579] [D] [zway] SENT ACK
[2025-12-31 11:23:37.579] [E] [zway] New node assignment for node 4 was received, but the node is already registered - ignoring
[2025-12-31 11:23:38.086] [D] [zway] RECEIVED: ( 01 09 00 49 40 04 03 02 02 07 FF )
[2025-12-31 11:23:38.086] [D] [zway] SENT ACK

[seattleneil]

Have you tried to stop and then restart Z-Way, or rebooted your Pi? That might solve the problem.

Based on the log data you provided, it looks like Z-Way's software status for node 4 and the actual status of node 4 are out of sync with each other.

One way to bring them back into sync is to do a factory reset on node 4 (greenwave plug). From a Google search, the factory reset procedure for the greenwave plug appears to be described in this link

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https://community.hubitat.com/t/uk-greenwave-smart-plug/2491/23?page=2

After node 4 has been factory reset, mark the device as failed in Z-Way from the command line, as follows (replace PASSWORD):

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curl -u admin:PASSWORD --globoff 'http://127.0.0.1:8083/ZWave.zway/Run/devices[4].data.isFailed.value=true'

At this point, Z-Way's software status and the actual device status should be in sync, where Z-Way software sees the device as failed and the device has been factory reset.

Next, use the Expert UI to replace the failed node (Expert UI->Network->Control). If node 4 is not listed as a failed node, then do a normal inclusion.

If you still see messages 'New node assignment for node 4 was received, but the node is already registered - ignoring' in the log file, there is an advanced method for resetting Z-Way's status of node 4. This involves editing Z-Way's config file in directory /opt/z-way-server/config/zddx by deleting the lines between '<device id="4">' and its end tag '</device>'. Note that you will need to stop Z-Way before editing the file. Since modifying this file can prevent Z-Way from working, you really want to make a backup copy of the config file before making any changes.