Once you are able to log in via SSH to the Unifi, there are several useful commands:

  • Reset AP to Factory Default
    syswrapper.sh restore-default 
  • Manually Upgrade AP
    syswrapper.sh upgrade [from Ubnt download website past URL with latest FW to the device you are upgrading], ie:
    upgrade https://dl.ui.com/unifi/firmware/U7PG2/4.3.24.11355/BZ.qca956x.v4.3.24.11355.201207.1717.bin
  • If the above doesn't work:

        go to https://ubnt.com/downloads  select the device you need firmware for, download it (it will be name.bin )

Here is the example how to manually upgrade firmware of the uap-ac-pro:

Login via ssh to the unifi access point (uap-ac-pro in this case, but they all will be similar), run the below commands:

cd /tmp

wget https://dl.ui.com/unifi/firmware/U7PG2/4.3.24.11355/BZ.qca956x.v4.3.24.11355.201207.1717.bin --no-check-certificate

mv https://dl.ui.com/unifi/firmware/U7PG2/4.3.24.11355/BZ.qca956x.v4.3.24.11355.201207.1717.bin fwupdate.bin

syswrapper.sh upgrade2

  • Status of the device

       info - this command will show the status of the UniFi Access Point, Cloud Key, USW switch, etc.
       * if it shows anything else than adopted, then try to edit /etc/hosts as show below

  • Enter CLI
    mca-cli

  • Set Inform Server
    set-inform http://ip-of-controller:8080/inform

You can also try to add line in /etc/hosts

IP_address_of_controller   unifi

Then try to ping unifi it should resolve to the controller's IP and also allow you the adoption, once the set-inform command is issued, ie:

set-inform http://unifi:8080/inform

Need to get a backup from UCK-G? There is a way to find it too:

Once you are logged in via ssh

autobackup files are saved to /data/autobackup

Alternatively run:

find / -name *.unf 
You can use winscp or filezilla to download the files to your computer

In case of size issues on UC-CK:

First thing is to clean cache, helps in most cases:

# apt-cache clean;  apt-get update; apt-get install aufs-tools'
# /sbin/auplink / flush

Too large mongo database on UC-CK? Check this link

To manually upgrade FW on UC-CK via SSH, just issue the below command:

# ubnt-systool fwupdate https://dl.ui.com/unifi/cloudkey/firmware/UCK/1.1.13.bin

The above info is for current latest version 1.1.13, but when newer version will be available,it will just be higher number before .bin

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