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Reconnect your AT&T MicroCell

Find out how to reactivate your MicroCell if it was disconnected for inactivity.

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Before reconnecting your AT&T MicroCell®, check if your mobile devices are Wi-Fi Calling capable. If they are, you may not need to use MicroCell in your home.

With Wi-Fi Calling, you can talk and text with an active Wi-Fi® connection instead of your MicroCell. Learn how to easily switch from MicroCell to Wi-Fi Calling.

Getting reconnected

Be sure you have a working internet connection (high-speed internet, gateway, or modem and Wi-Fi router).

To get the best signal, install your Microcell:
  • On the first floor or above basement level and not in a closet
  • Next to a window so the signal has a clear, unobstructed path to the sky
  • At least 1 foot away from other wireless broadcasting devices
  • When the weather is clear (no clouds or rain)
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How to reconnect your MicroCell

  1. Connect one end of the Ethernet cable to the Ethernet port on your MicroCell and the other end to your router or gateway.
  2. Plug your MicroCell into a power outlet with the AC power adapter.
    • The power light on the front of the device will light up right away. It could take up to a minute for the Ethernet light to stop flashing. Within a few minutes, other lights will flash as the MicroCell locates a GPS signal and updates its software.
    • Allow up to 90 minutes for your MicroCell to fully activate. It may restart during this time. You’ll know it’s ready to go when the network light stops flashing. 
    • When your wireless device shows AT&T MicroCell or AT&T M-Cell instead of AT&T as the network provider, it’s connected to the MicroCell. You can then make a call from your wireless device to make sure it’s working properly.
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Text notification of MicroCell deactivation

You may get a text that we’re deactivating your MicroCell. We do this when our records show that your MicroCell hasn’t logged any voice or data use in at least 6 months.

Our records may show an unused MicroCell if you have:
  • An old MicroCell that you unplugged and no longer use 
  • A MicroCell that didn't complete activation
  • Both a working MicroCell and an unused MicroCell linked to your account 
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