Slow Internet troubleshooting

If your internet is slower than normal or not keeping up with your friends' phones, it can make streaming or loading apps a problem.


Follow steps below to troubleshoot if your device has no data service, but is still able to call or text.



If you need help with steps on your device, visit the Devices page, select your device, and look under Help Topics for the steps.


High data usage & prioritization

If you used a very large amount of data (50 GB) this bill cycle, you're subject to lower network prioritization during times of local network congestion.


  • For information, see Internet Services > "Network Management for Extremely High Data Usage and Tethering."
  • This protects the majority of customers from issues of degraded service in busy times and places.
  • If you're affected by prioritization:
    • Your data speeds will be normal when connected to a tower that isn't currently congested with traffic.
    • At the beginning of your next bill cycle, your usage will reset and prioritization will be removed.



Internet or data speeds are slow

  1. On My T-Mobile, check that you haven't used all of your high-speed data bucket. See Data speeds for more information.
  2. Check your device shows at least 2 bars signal. If you have less, your signal is too low for reliable data speeds. Check out Signal issues.
  3. See Coverage map to ensure your area has T-Mobile 3G, 4G, or LTE coverage.
  4. Check the phone shows a 3G, 4G, or LTE icon. If not, see No icon for 3G, 4G, or LTE.
  5. Turn off Wi-Fi to ensure you're using T-Mobile network data.
  6. If the slowness is in the web browser, clear your browser cache, cookies, and history.
  7. Uninstall downloaded apps such as:
    • Web browser apps (Use the web browser that came with the device, not a downloaded browser.)
    • Battery saver apps
    • All apps you downloaded around the time the problem started
  8. Set the device 'Network Mode' setting to Auto.
  9. For Android devices: (Visit the Devices page for help with any steps.)
    • Reset the device APNs to default.
    • Wipe the cache partition.
    • Check for apps running in the background that use data. If there are, turn them off or uninstall.
  10. For Apple iPhone, reset network settings. (Settings > General > Reset > Reset Network Settings)
  11. Update the device software to the latest version. Visit the Devices page for current versions and steps.
  12. Restart your device.
  13. Download the app from the app store (If downloading too slowly, try a Wi-Fi connection), and run a speed test.
    Typical download speeds (Actual speeds can peak at double this speed, and expect minimums of < .1 Mbps.):
    • 4G LTE (device data): 7-40 Mbps
    • 4G LTE (Hotspot, tethering data): 3-25 Mbps
    • 4G: 2-6 Mbps
    • 3G: 400-700 kbps.
      This test will help Customer Care diagnose the problem.
  14. If your speeds still fall short of what is typical, please Contact Us for additional help. We may need to check a few account settings and look at the local network in more detail for you.



Related pages

No icon for 3G, 4G, or LTE

No Internet troubleshooting