Fix connection problems

If you’re having trouble connecting your Chromebook to the Internet, try the steps below. Test your Chromebook after each step to see if the problem is fixed.

If you’re still having trouble after trying these steps, contact us.

Problems connecting to mobile networks (US)
  1. Make sure your Chromebook can connect to mobile networks, and that your connection is on.
  2. Restart your Chromebook.
  3. Make sure the T-Mobile or Verizon Wireless network is turned on. Call your mobile carrier if you have problems connecting.

You can also try switching mobile carriers:

  1. Sign in to your Chromebook as a guest.
  2. Press Ctrl + Alt + T to open a terminal window.
  3. Type this command: modem_set_carrier Generic UMTS
  4. Press Enter.
  5. Type exit.
  6. Turn off the Chromebook.
  7. Insert a SIM card from a different mobile carrier.
  8. Turn on the Chromebook.

To switch back to Verizon, open a terminal window and type this command:

modem_set_carrier Verizon Wireless

To switch back to T-Mobile, open a terminal window and type this command:

modem_set_carrier T-Mobile

Problems connecting to mobile networks (outside the US)
  1. Make sure your Chromebook can connect to mobile networks, and that your connection is on.
  2. Restart your Chromebook.
  3. Check that your SIM is activated. If you're still having problems, contact your carrier.
  4. You might need a PIN to unlock the SIM card. If you don't know the PIN, call your carrier or use mobile data roaming.
Problems connecting to wired networks
  1. Make sure your Chromebook is connected to the router with a working Ethernet cable or USB adapter.
  2. Click the status area, where your account picture appears. If your Chromebook is connected properly, you'll see the connected icon Wired connection connected. If it’s not connected, you’ll see the disconnected icon Wired connection disconnected.
  3. Try connecting a different computer to the router. If it connects properly, you might need a different cable or USB Ethernet adapter.

 

Casey is a Chromebook expert and author of this help page. Help her improve this article by leaving feedback below.

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