Unable to Establish a Wireless Data Connection on Samsung Galaxy S9

If you’re experiencing issues like unable to establish a wireless data connection with your mobile internet, head to Settings > Software/System Updates, and update both Update Profile and Update PRL. Doing so should eliminate this error from your device.

If the problem persists, troubleshoot further using the workarounds we listed below.

Fix Samsung Galaxy S9 that is Unable to Establish a Wireless Data Connection

Mobile data is accessible directly through your network connection, usually with a data plan by your network provider. If you notice that the reason your mobile data isn’t working is because you have no service on your Galaxy S9, then click here.

Once you’ve determined you have a stable network connection but your mobile internet still isn’t working (note this doesn’t include WiFi), here’s a few troubleshooting steps for you to try.

The first step is pretty obvious. Make sure your mobile data is turned ON and wasn’t turned off accidentally by some app.

  • Go to Settings > Connections > Data usage and make sure mobile data is ON.
    Data Usage

Now that we’ve made sure mobile data is ON, we want to try and perform a reset network settings. This refreshes your network configuration to your service provider without erasing any data off your device. Note however that it does remove saved WiFi passwords so make sure to reconnect to your WiFi after this step.

  • Go to Settings > General Management and tap on Reset.
    General Management
  • Select Reset network settings.
    Reset your phone settings
  • If your smartphone doesn’t restart automatically, power it off then back on.

Once this is complete, make sure your mobile data is ON and test your data connection once more. Are you able to load webpage or app successfully? If you’re still unable to connect to internet with your Galaxy S9 then it’s time to check your APN settings.

  • Go to Settings > Connections > Mobile networks.
  • Tap on Access Point Names.
  • In this window make sure you have your APN settings configured for your Carrier . You will see the name of your service provider under Access Point Names. Tap on your Carrier’s APN and make sure the settings are configured properly. You can check if they’re available here for your Carrier or use google to find out what APN settings you need configured (for example google “Verizon APN settings”)
  • If you don’t see any APN settings configured for your Carrier, you simply have to add them manually.
    Access Point Names

After making sure your APN is configured properly for your Carrier, test your mobile data connection on your Samsung Galaxy S9 once again by loading a webpage or app.

If you still can’t connect to your mobile internet after trying all of the above, then you have 2 options left. The first is to try and perform a factory reset, however make sure you first backup any sensitive data including photos and contacts. The second option is to contact your service provider and make sure that there are no issues with your mobile data plan.

If you’ve also performed a factory reset and contacted your service provider, we suggest at that point to look into your options for replacing/repairing your device.

I hope that we are able to help you fix the wireless data connection problem with your Galaxy S9 device. If you find this information helpful, feel free to share this post.

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