In this guide, we’ll walk through setting up a point-to-point link between two UniFi UDB-Pros. This walkthrough assumes that something has gone wrong and we’re starting fresh.


- If you’re setting these up for the first time straight out of the box, you can skip Step 1 and proceed directly to the adoption process.


Step 1 – Factory Reset Both Units

  1. Disconnect the UDB units from your network.

  2. Use the included PoE injector:

    • Plug the UDB into the injector (power only).

    • On the injector, locate the reset button (opposite side of the LED at the top).

    • Hold the reset button for 10 seconds until the unit resets.

  3. Repeat for the second unit.

  4. Unplug both units after resetting.



Step 2 – Adopt the “Main” UDB Unit

  1. Choose which UDB will be the main unit (the one connected to a UniFi network with a UDM/UDR/UCG.

  2. Connect the main UDB to your network and power it via PoE.

  3. In your UniFi Controller, wait for the unit to appear and adopt it.


Step 3 – Adopt the “Remote” UDB Unit

  1. On the remote side, make sure no APs are meshing with the unit.

    • To ensure this, power the unit via PoE without any data connection.

  2. Wait a short time – it should appear in your UniFi Controller for adoption.

  3. Once it appears, adopt it into your network.


Step 4 – Finalize Setup

  1. After adoption, you can reconnect both UDB units back to your USW-Ultra or chosen switch.

  2. The bridge will automatically link, providing a wireless connection between the two locations.



✅ You’ve now set up your UniFi UDB pair!