Z-Wave JS UI - dead node

Hi,

I am using Z-Wave JS UI (always latest version) which is causing me issues with dead nodes since some weeks. It was working for more than a year, no hardware was changed and out of a sudden entities are marked as dead.

Used hardware:

  • Aeontec Z‐Stick Gen5; FW: v1.0; SDK: v6.51.2
  • 8x Fibaro Roller Shutter 3 FGR 223; FW: v5.1
  • 2x Fibaro Motion Sensor FGMS 001; FW: v3.3

The main problem is with the Roller Shutters. There are several nodes that become dead. Doing a PING might bring them back to live for an undefined amount of time, but they will be marked as DEAD sooner or later again.

I have run the “rebuild routes” several times, but this doesn’t help.

The log doesn’t show much information:

2023-11-18 19:21:35.569 INFO Z-WAVE: Calling api refreshNeighbors with args: [ [length]: 0 ]
2023-11-18T18:21:35.570Z CNTRLR   Turning RF off...
2023-11-18T18:21:35.601Z CNTRLR » [Node 001] requesting node neighbors...
2023-11-18T18:21:35.612Z CNTRLR « [Node 001] node neighbors received: 4, 5, 9, 11, 13
2023-11-18T18:21:35.612Z CNTRLR » [Node 002] requesting node neighbors...
2023-11-18T18:21:35.626Z CNTRLR « [Node 002] node neighbors received: 3, 4, 5, 7, 11, 12, 14
2023-11-18T18:21:35.627Z CNTRLR » [Node 003] requesting node neighbors...
2023-11-18T18:21:35.638Z CNTRLR « [Node 003] node neighbors received: 2, 4, 5, 7, 11, 12, 13, 14
2023-11-18T18:21:35.639Z CNTRLR » [Node 004] requesting node neighbors...
2023-11-18T18:21:35.657Z CNTRLR « [Node 004] node neighbors received: 1, 2, 3, 5, 7, 8, 9, 11, 12
2023-11-18T18:21:35.660Z CNTRLR » [Node 005] requesting node neighbors...
2023-11-18T18:21:35.671Z CNTRLR « [Node 005] node neighbors received: 1, 2, 3, 4, 7, 8, 9, 11, 13, 14
2023-11-18T18:21:35.671Z CNTRLR » [Node 006] requesting node neighbors...
2023-11-18T18:21:35.681Z CNTRLR « [Node 006] node neighbors received: 7, 11
2023-11-18T18:21:35.682Z CNTRLR » [Node 007] requesting node neighbors...
2023-11-18T18:21:35.693Z CNTRLR « [Node 007] node neighbors received: 2, 3, 4, 5, 6, 8, 9, 11, 12
2023-11-18T18:21:35.693Z CNTRLR » [Node 008] requesting node neighbors...
2023-11-18T18:21:35.719Z CNTRLR « [Node 008] node neighbors received: 4, 5, 7, 9, 11, 12
2023-11-18T18:21:35.720Z CNTRLR » [Node 009] requesting node neighbors...
2023-11-18T18:21:35.734Z CNTRLR « [Node 009] node neighbors received: 1, 4, 5, 7, 8, 11
2023-11-18T18:21:35.735Z CNTRLR » [Node 011] requesting node neighbors...
2023-11-18T18:21:35.744Z CNTRLR « [Node 011] node neighbors received: 1, 2, 3, 4, 5, 6, 7, 8, 9
2023-11-18T18:21:35.745Z CNTRLR » [Node 012] requesting node neighbors...
2023-11-18T18:21:35.757Z CNTRLR « [Node 012] node neighbors received: 2, 3, 4, 7, 8
2023-11-18T18:21:35.758Z CNTRLR » [Node 013] requesting node neighbors...
2023-11-18T18:21:35.772Z CNTRLR « [Node 013] node neighbors received: 1, 3, 5
2023-11-18T18:21:35.773Z CNTRLR » [Node 014] requesting node neighbors...
2023-11-18T18:21:35.785Z CNTRLR « [Node 014] node neighbors received: 2, 3, 5
2023-11-18T18:21:35.786Z CNTRLR   Turning RF on...

Nodes 004, 005, 007 and 008 are marked as DEAD in Z-Wave JS UI and are not accessable via HA.

Any recommendations on how to debug this in more detail and how to get a stable mesh again?