Remove Unknown Z-Wave Device

While doing Zwave repair. The repair procedure found some Z-Wave unknow devices.
Is there a way to remove them ?

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It should be automatic according to their engineers @alissa.dornbos

This is a picture of a Z-wave repair report. Done today

@Kianoosh_Karami how long does it normally take for ghost devices to be removed? Is there any to force remote ghost nodes from the zwave controller (like with the old ide manually assign and delete the network Id)?


8 days latter , I’m still having UNKNOWN Z-wave devices while doing Repair Z-Wave network utility.
@alissa.dornbos , @Kianoosh_Karami , @nayelyz , @JDRoberts

Please comments and recommend what to do ?

The screen capture you posted didn’t show any network IDs: are these no longer posted as part of the zwave repair report? If so, that makes it much much harder to troubleshoot.

In any case, you have a device in the hub’s network table which doesn’t have a matching physical device attached to your network.

This can happen because of a failed initial pairing or because of a failed removal, either of which can end up leaving a network table entry on the hub with only partial information.

Try the advanced page of the new web UI and see if the ghost devices are listed there.

There is one other possibility: what model is your hub? Sometimes the Wi-Fi mesh models will mark a subhub as an “unknown device“, I’m not sure what that’s about.

Smartthings staff have said multiple times that since the firmware 37 update, the hub should find and correct any ghost devices overtime, but it can take several days. I’m guessing this is an explorer frame utility, but I don’t know the details.

I have to leave any further comments to people more familiar with the smartthings architecture.

SmartThings Hub V2

Nothing there that is UNKNOW DEVICE.

Looking forward to comments from these people…

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Hi, @dotan_shai
There’s no need to tag Alissa or Kianoosh, I asked the team about this a while ago but I haven’t gotten feedback yet. I just pinged them again.
So, just to confirm, there are no registries in the API of those unknown devices (that’s confirmed with the Advanced users’ app), they just appear during the Z-Wave repair process, right?

All correct.
No unknown devices in Advance API.
These unknown devices appear only when doing the Zwave repair utility.

Nayely, actually I’m also interested in this because I have a z-wave device that keeps going online/offline every few hours. Got brand new batteries and is close to the hub, I suspect it’s a problem with the ghost devices causing routing problems and loss of packets in the mesh.

Same issue I have except the last few days, The repair process shows a unknown device and then never finishes. I have also tried the Z-wave repair advanced api and I dont see anyway to see what it happening during the process.

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Hi, @dotan_shai, @RBoy
I just heard back from the team, in order to investigate the issue, we need the following:

  1. Replicate the issue and send Hub logs right afterwards.
  1. In the Advanced Users app, enter the “Hubs” section
  2. Enter the corresponding Hub and click on “Dump Hub logs”
  3. Confirm the process by clicking on “Dump Hub logs” again in the pop-up.
  4. You’ll get a green box at the top confirming the Hub logs were requested
  1. Enable support access to your account
    1. Confirm the email account registered in the forum is the same one you use for SmartThings. If not, please share it with me over DM
    2. Enable support access to your account:
  1. Go to the SmartThings Web (
  2. Log in to your Samsung Account
  3. Select Menu (⋮) and choose Settings
  4. Toggle on Account Data Access
  5. Select the time period and confirm - In this step, please select “Until turned off”, once the team finishes, we’ll let you know so you can disable it again

Hi, @mlchelp
You’re only trying to repair the network or to pair a physical device as well?

Waiting for more instructions…

Im only trying to do the Zwave repair.

ok, can you provide the same info I mentioned here, please?

Done……… 20 chars

@Kianoosh_Karami @nayelyz

When force deleting a z-wave device from the mobile app I believe that it will update the z-wave controllers table to remove the device from the controller mesh table as well.

I want to clarify if the same behavior is expected when force deleting a z-wave device from the Advanced Web UI and also via the SmartThings device API’s? Does it update the Z-Wave routing tables? Does one need to do a Z-Wave repair after such table updates or are they propagated by the controller to the mesh devices?

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Hi, @RBoy
I asked the engineering team about this, once I get more info, I’ll let you know.

@dotan_shai We took a look at your logs internally and noticed that the period captured in them was not as complete as we would have liked. Can you please run a repair operation again and then post back here right after so we can be sure to have a complete set? We apologize for the inconvenience.