• Your Samsung Galaxy phone may fail to connect to a network due to temporary glitches, misconfigured network settings, or a faulty SIM card.
  • Try toggling the airplane mode or restarting your phone to see if that helps.
  • Consider updating the Access Point Name (APN) settings or resetting all network settings on your Samsung Galaxy phone.

Basic Fixes

  • Remove and reinsert the SIM: An improperly inserted SIM can result in such network errors. Hence, first, take out the SIM and insert it again. While at it, inspect the SIM card for any visible damage.
  • Install Android updates: Installing software updates on your Samsung phone can address issues caused by bugs or outdated builds. Hence, it’s a good idea to install any pending updates to ensure optimal performance.

Fix 1: Select Network Manually

By default, your Samsung phone is configured to find and connect to your carrier’s network automatically. This can sometimes result in the “Not registered on network” error. To fix this, select the correct network manually.

Step 1: Open the Settings app on your phone and go to Connections > Mobile Networks .

Connections on Android - 1

Step 2: Select Network operators and turn off the toggle for Select automatically . After that, select your network from the list.

Network Operators on Android - 2

Fix 2: Change the Preferred Network Type

Such network registration errors can also occur if you’re in an area where the set network type is unavailable. To avoid this, configure your Samsung phone to pick the available network type automatically.

Step 1: Open the Settings app on your phone and navigate to Connections > Mobile networks .

Step 2: Select Network mode to choose 5G/LTE/3G/2G (auto connect) .

Network Mode on Android - 3

Fix 3: Update APN Settings

Another reason you might get this error is if you’ve recently changed your service provider or migrated to a different plan with the same carrier. You can try to fix it by updating the APN (or Access Point Name) settings. You must contact your service provider to get these settings.

Step 1: Open the Settings app on your phone and navigate to Connections > Mobile networks > Access Point Names .

Step 2: Tap the Add option at the top right corner. Enter the information provided by your carrier, tap the three-dot menu at the top, and hit Save .

Step 3: Go back to the previous menu and select the newly created APN .

APN Settings on Android - 4

Fix 4: Reset Network Settings

If you still can’t fix the “Not registered on network” error, consider resetting the network settings . Here’s how:

Step 1: Open the Settings app on your Galaxy phone and scroll down to select General management .

Step 2: Tap Reset and select Reset network settings from the following screen.

General Management on Samsung or Android Phone - 5

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