How to fix an unresponsive Unifi Cloud Key | David Mello

How to fix an unresponsive Unifi Cloud KeyHow to fix an unresponsive Unifi Cloud Key

How to fix an unresponsive Unifi Cloud Key

January 16, 2020 In general, I ‘ve been very glad with my Unifi cloud key for managing my Unifi network, but there have been 2 occasions over the past match years where the cloud key has encountered unrecoverable failures.

In both cases, the cloud key ‘s status LED was showing a white LED light alternatively of the convention blue. When this occurs I ‘m ineffective to login to the unifi restrainer software ‘s vane interface. It hangs at login indefinetly after submitting my username and password .

The defile samara uses a mongo database that does not handle sudden shutdowns very well .

This means any time there is a power loss you are at risk of corrupting the cloud key ‘s mongo database 😢 The beginning time my cloud key failed my vicinity was dealing with semi-frequent blackouts for 4 hours at a clock before the world power utility could restore power — some screen of metro powerline issue. As a workaround, I ended up buying an APC UPS 1500VA UPS that let ‘s you connect another battery to it which gave me a farcical uptime for my modem + USG + US-8-60W trade + UAP AC Pro + UC-CK defile key at 8 hours. I might not have office, but I ‘ll have the internet to keep me distracted all day 😂 The workaround worked well until a pair weeks ago when it randomly happened again without a ability outage as the causal agent. sol, for my future self, and the benefit of others, below are the steps to recover your UC-CK mottle keystone .

Solution 1: Try restarting the Unifi Service

Using ssh, ssh to yourUsername @ theIpAddressOfYourCloudKey




unifi restart





If that does n’t work you ‘ll need to go to solution 2, resetting to defaults and restoring from accompaniment .

Solution 2: Reset the cloud key to defaults and restoring settings from backup

This wipes out all the backups stored on your obscure key so move them off the cloud key before proceeding

  1. Use a tool like WinSCP to connect to your cloud key’s filesystem.
  2. Change to /data/autobackup
  3. Verify you have backups there. Download them somewhere safe–not on the cloud key.
  4. Using ssh login to ssh yourUsername@theIpAddressOfYourCloudKey
  5. Run reset2defaults

/sbin/ubnt-systool reset2defaults

  1. After a good amount of time your cloud key will restart and will likely have a different IP address.
  2. Use the ubiquiti device discovery tool – chrome extension to find your cloud key’s new ip address on the network.
  3. Navigate to http://theIpAddressOfYourCloudKey and login as root / ubnt
  4. Select the option to restore from your backup and point to the saved backup from earlier.

This should restore everything back like you had it. If you see oddities in the unifi splashboard like missing a USG fair give it more time to catch up .

But what if my backups have a an new, ill-sorted, firmware version than what the cloud key readjust to ? 😱

This happened to me. The reset put me on an older ubiquiti firmware version than the overcast key backups somehow. To use the backing you need to upgrade your cloud key firmware to the same version .

  1. Using ssh login to ssh://root@theIpAddressOfYourCloudKey password ubnt
  2. Navigate to the ubiquiti downloads site and locate the firmware version that matches your backup.
  3. Note the url path to the .deb file of the firmware.
  4. In the ssh terminal




*path you copied to the .deb



dpkg -i unifi_sysvinit_all.deb

once that finishes installing




  1. Navigate to http://theIpAddressOfYourCloudKey and login as username: root password: ubnt
  2. Select the option to restore from your backup and point to the saved backup from earlier.
  3. Login to the cloud key’s website using your original credentials (now that it restored the backup) and change your ip address for the cloud key back to what it was originally.

Your Unifi obscure key ‘s LED light should now be back to blue from ashen, responsive, and working with your old shape again .

Next steps: Best Solution

Since the original release Ubiquiti has put out the Unifi Cloud Key Gen2 which largely solves this problem by including a stand-in barrage that allows it to safely shut down when the baron goes out. I ‘ll be upgrading to that curtly and reporting spinal column. Thanks for read .

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