[SOLVED] Hub was working, now has a blue light

I bought a hub a year ago. With the ST announcement that Groovy is history, I opened my hub yesterday, set it up and added two devices. A few hours later, I unplugged it to move it and it now appears to be bricked. The blue light never turns green and while 'find my hub' finds the hub, it's unreachable.

I emailed support and received a response that only provides links to online info. Nothing in the email indicates anyone will reach out to me or any additional responses are forthcoming.

Does Hubitat not provide active support? I have what I believe is a dead hub and was hoping to review my options with a human being but that doesn't seem possible. Am I correct that that's not going to happen? TIA for any info anyone can provide.

@bobbyD

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While you're waiting for support you might try seeing if you can get to the hub diagnostics tool on port 8081. I think that should still be accessible even if you have a blue light (though I might be mistaken). If you can get there you might try downloading the latest version and seeing if the hub restarts.

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The method of contacting support is via the web portal: support.hubitat.com

I'm guessing this was one of those links?

That being said, posting here isn't a bad idea, either, and it can't hurt to try the above suggestion first!

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Any light is better than no light, but blue light is less desirable. Were you running a platform update when you decided to move the hub? Can you reach the Diagnostic Tool? Also, you could send me a private message and will see if we can help you. Be sure to join the Hub Owners group, if you are unable to send private messages.

https://community.hubitat.com/g/owners

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Thanks, guys. It appears the hub has arisen from the dead. I used the Diagnostic Tool to download the latest version. It then took a couple of soft resets to get it back online but I have a green light now. I appreciate the help.

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:+1:

A few recommendations:

  1. Make sure you update the z-wave firmware before adding any devices (Settings -> Z-Wave Settings)
  2. Always do a shutdown and don't yank power.
  3. If you must yank power, do it from the power supply end and not the microUSB connector.
  4. Put your hub on a UPS.

Finally, if you have a lot of z-wave devices, correct any incomplete pairings (i.e. ghost devices) before adding another device.

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This. Sounds like OP did that (based on the first post) and corrupted something.

Why? Because this isn't an appliance with everything stored in non writeable memory. If you pull power while it's writing something to memory (volatile or not) there is a high chance of the write being corrupted.Most times it's not doing a write and pulling power won't have an impact which is what leads to a degree of complacency (I'm guilty of this from time to time too).

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Corrupted database usually manifests as inaccessible hub but green light while Diagnostic Tool is reachable.

Network issues usually manifest as green light with hub interface and Diagnostic Tool inaccessible.

Blue Light means platform didn't start. While this rarely happens, a simple reboot (power cycle) should fix the problem. Most incidents of blue light I have seen, on a previously functional hub, is when a loss of power happens in the middle of an update. In that case, downloading the latest version should resolve the problem.

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thanks for clarifying!

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Please create a new thread with more details about the problem you’re running into.

Reviewing this post first can help you provide relevant details so that others can help.

@moderators please consider closing this old thread.

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