airMAX – Configure a Wi-Fi access point (hotspot)


The following guide explains how to set up a hotspot that DOES NOT require an upstream DHCP server. It will act like a SOHO router for this purpose, handing out IP addresses from a private pool.  See the graphic below for more details.

If you have a SOHO router upstream, and wish to use it to assign IP addresses to your hotspot users, follow the directions found in the video that you will see by hyperlinking here, instead.




  1. These instructions assume that your radio is set to FACTORY DEFAULT values.  Please restore to factory defaults before proceeding.  This is critical, especially if you are troubleshooting a problem.
  2. With your Windows 7 PC or Mac computer configured to the 192.168.1.x subnet, connect it to the radio using an Ethernet cable.  The Ethernet port is auto-sensing.  You are not required to use a cross-over cable.
  3. Using a web browser, enter as the “URL” to gain access to the radio’s management console.
  4. Enter “ubnt” as the administration account and “ubnt” as the password.

Configuration Instructions (change ONLY the items shown, leaving others at default values):


A. Choose the |Wireless| tab, and change only:

  • Wireless Mode: Access Point
  • Channel Width: 20MHz
  • Press [Change] button 

OPTIONAL for 5GHz (802.11a) ONLY:  Some newer devices can attach to 5GHz (802.11a) hotspots.  It is possible to create a more private hotspot using Ubiquiti M5 radios (5GHz), rather than M2 radios (2GHz).  The setup instructions are the same with this single variation.  It applies ONLY to M5 radios.

  • Frequency List, MHz [X] Enable (select it)
  • [Edit…]
  • Select only those frequencies that are recognized Wi-Fi channels (UBNT radios can operate “in between” standard channels, where some 802.11a Wi-Fi clients may not be able to find them).  In the USA: 5745, 5765, 5785, 5805, 5825, [OK].  For channel frequencies of other countries, see this link:
  • Press [Change] button

B. Choose |Network| tab, and change only:

  • Network Mode: SOHO Router
  • Press [Change] button

C. Choose |Ubiquiti Logo| tab and change only:

  • airMAX: [ ] Enable (UN-select it)
  • Press [Change] button
  • Press [Apply] button

ALERT #1: Since the Ethernet port of the radio is now configured by DHCP, you will lose connection to the radio via Ethernet.  Because it is not connected to a DHCP server, it will use the “fallback SOHO Router IP address” of  Connect the radio’s Ethernet port to your Cable/DSL modem or router to continue.

ALERT #2: When connecting to a Cable or DSL modem, it may be necessary to power-cycle that modem in order for it to discover the Ubiquiti radio and assign it a functional DHCP 


1 – Use Ubiquiti TOUGHCable-Pro shielded twisted pair data cable between your Power over Ethernet adapter and your radio. If your radio is being co-located in an area with a VHF pager, FM or TV broadcast transmitter, use Ubiquiti TOUGHCable-Carrier cable.

2 – Secure your radios. Modify the default administration account name and password now. From the web management console…

  • Select |System| tab > System Accounts
  • Administrative Username [change it]
  • Hover over icon to the right, “Change Password” and modify it
  • Press [Change] button. Press [Apply] Button

3 – Secure your wireless signal to restrict unauthorized users. Encrypt your wireless connection. From the web management console…

  • Select the |Wireless| tab > Wireless Security
  • Security > WPA2-AES
  • WPA Preshared Key: enter something long, but memorable to you
  • Press the [Change] button. Press the [Apply] button

4 – Customize the broadcast SSID …

  • Select |Wireless| tab > SSID [change it]
  • Press [Change], Press [Apply]

5 – Make a backup of your settings

  • Select the |System| tab > “Configuration Management” > [Download]


Edited with

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