When you order a static IP that is assigned through Millenicom, you must change the APN on your modem from fast.t-mobile.com to b2b.static in order for it to work properly.

It is wise to be in the latest firmware. You could either do a remote update if you have a working internet in the MOFI router by going to System and then remote update and perform remote update. If you want to do a manual upgrade (if you do not have a working internet in the MOFI router), follow this video tutorial: www.youtube.com/watch?v=7g8SGYDNVbw

At this point make sure the SIM is inside the router. Now log into the router and go to Network and then MOFI internal modem and then all the way to the bottom of the page click on Press here to reset the Sierra module. Once the router is up, perform a factory default. The internet should work automatically. If not, make sure the APN you are seeing is fast.t-mobile.com. You can check APN from MOFI Internal Modem, all the way to the bottom of the page you should see your current Access Point. If we are good on that side, go ahead and check your signal strength. Go to Overview from the top left hand corner on the list. On the middle of the page, click on Check Signal Strength.

If the signal isn’t good enough, you can try to perform band lock as well. To perform band lock, follow the instruction below:

LTE bands are 2, 4, 12/17 and 71.

Please follow the instructions to perform Band Lock on MOFI4500 router :

• Log into the router
• Go to MOFI Internal modem and below that go to Band lock
• On the right hand side you should be able to see Lock Modem to a Band and then select Band 2 from the list.
• Click next and then finish in the next screen.
• The router will go through a power cycle. Once it is up your router will be locked to Band 2. Run at least three speed tests if you have internet light on and note it down.

Repeat the same process for Band 2, 4, 12/17 and 71. Then finally lock on to the band that gives you the best results.

NOTE: If you do not see internet light for one specific band, then either the signal is really poor for that band or that very band isn't offered in your location

Ultimate 4G/LTE Airesy

Congratulations, you are now the proud owner of Ultimate 4G/LTE Airesy, custom built for our Ultimate Plan. Your device is active and ready to connect. You can use it immediately.

1. Press the power button and hold it down till you see Welcome on your display.

2. After 30 seconds or so, in your WIFI options of your computer, etc. click on Millenicom.

3. The password type in 1234567890 and then click enter. Connects up to 32 devices.

You can connect your Airesy directly to your computer with the USB cord (included) to both charge your device as well as create a direct connection and connect others via the WIFI or bypass relying on its WIFI function.

To change your password, (Must be 10 characters) or make any other proprietary modification:


1.  Connect to your device and then type in the URL field of your browser

2.  If necessary, in the top, right-hand corner modify the language option to English

3.  Use admin as the password

4.  In the settings interface, click the question mark icon to open any menu item.

5.  To request the user manual as an attachment, email support@millenicom.com

Function description

The Ultimate 4G/LTE Airesy is a high-speed portable 4G router and provides data access and SMS functions such as TDD-LTE / FDD-LTE / TD SCDMA / WCDMA / GSM, which supports Bands 2, 4, 5, 12 and 17. At the same time, the Ultimate 4G/LTE MIFI supports Micro SD card operability, which provides mobile USB disk function.




Function description


Display screen

Display the information of signal, network connection type, power, etc.


WPS button

For starting WPS function


Micro USB interface

1. For charging router

2. Connect the PC through the USB cable to provide USB Disk function and RNDIS  Internet mode


Switch button

For turning on and turning off


SIM card slot

For installing SIM card


TF card slot

For installing Micro SD card (TF card)


Reset hole

For factory reset

Ultimate 4G/LTE Airesy main features:

  Supports TDD-LTE/FDD-LTE/TD SCDMA/WCDMA/GSM etc. multi network modes

  Supports TF card and offers USB disk functionality

  Supports RNDIS mode: plugs into your PC or laptop to connect to the Internet

  Supports WPS function that allows users to simply and securely connect to WIFI

  Supports ‘fast boot’: set the fast boot mode for quick restart to your device

  Supports power-saving mode: set your WIFI coverage capacity to increase battery life

  Supports firewall functionality: provides address filtering, port mapping, UPnP, DMZ, etc.


When changing the WIFI password it must be 10 characters long or it will block access 

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