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Internet Not Working on Samsung

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A step-by-step UK guide to Internet Not Working on Samsung, covering setup steps, common causes, fixes, and related your

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Troubleshooting mobile data stops after a phone update

Step Action What It Fixes
1Check your network statusConfirms if issue is network-wide
2Toggle aeroplane mode on/offRe-registers SIM on your network
3Restart your phoneClears temporary network errors
4Check your network APN settingsFixes incorrect data configuration
5Re-insert SIM cardFixes poor SIM contact issues
6Contact your network supportResolves account or SIM faults

Mobile data, calls or texts can fail for a few recurring reasons — a wrong APN, a nearby network outage, a loose SIM, or a device software fault. Each cause and its fix are covered below.

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Troubleshooting checklist

Move to the next entry only if the one above didn't help

Step 1Check APNStep 2Select APNStep 3Toggle flight modeStep 4Restart phoneStep 5Test data

Resetting cached network data (Internet Not Working on Samsung)

Rule out a known outage via the UK APN Hub or Downdetector before adjusting settings — nothing fixes an active outage except time.

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Troubleshooting checklist

Each item assumes the previous one was already tried, so keep going down

Step 1Check APNStep 2Select APNStep 3Toggle flight modeStep 4Restart phoneStep 5Test data

Testing data with another SIM or network (Internet Not Working on Samsung)

Pull down the notification shade, toggle Aeroplane Mode on for ten seconds, then off — this drops and rebuilds the connection to the nearest mast, fixing most temporary issues.

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Troubleshooting checklist

Work down the list; every step assumes the last one didn't fix it

Step 1Check APNStep 2Select APNStep 3Toggle flight modeStep 4Restart phoneStep 5Test data

Last resort: factory reset network settings (Internet Not Working on Samsung)

A proper restart flushes the modem cache and forces SIM re-registration, resolving issues aeroplane mode toggling won't touch.

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Troubleshooting checklist

Continue downward — each entry picks up where the last one left off

Step 1Check APNStep 2Select APNStep 3Toggle flight modeStep 4Restart phoneStep 5Test data

Step 4 — Re-seat the SIM card (Internet Not Working on Samsung)

Power the phone down completely before opening the SIM tray. Check the contacts for dirt, clean gently, and reinsert firmly before restarting.

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Troubleshooting checklist

Progress through the list; each step assumes the earlier ones were tried

Step 1Check APNStep 2Select APNStep 3Toggle flight modeStep 4Restart phoneStep 5Test data

Step 5 — Check APN settings (Internet Not Working on Samsung)

Data can fail with full bars if the APN is wrong. Check it against your network's recommended values, listed on the UK APN Hub.

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Troubleshooting checklist

The list assumes a top-to-bottom read, each step following the last

Step 1Check APNStep 2Select APNStep 3Toggle flight modeStep 4Restart phoneStep 5Test data
!
Reset Network Settings will delete all saved Wi-Fi passwords
This step also removes all Bluetooth pairings and VPN profiles. Make a note of your Wi-Fi passwords before continuing. Only use this as a last resort after all other steps have failed.

Step 6 — Reset network settings for Internet Not Working on Samsung

Resetting via Settings → General Management → Reset → Reset Network Settings on Android brings back APN defaults and clears connectivity pairings without affecting apps or data.

For iPhone, resetting via Settings → General → Transfer or Reset iPhone → Reset → Reset Network Settings restarts and reconnects using defaults.

📶

Troubleshooting checklist

Move on if an entry doesn't help — the next one assumes it didn't

Step 1Check APNStep 2Select APNStep 3Toggle flight modeStep 4Restart phoneStep 5Test data

Step 7 — Contact your mobile network support when internet is down

If it's still not working, reach out to your network's support — an account issue, failing SIM, or local fault could be behind it. Have the account number and IMEI (dial *#06#) ready.

Related guides

Lyca Internet Not WorkingMobile Data Not Working on iPhoneMobile Data Not Working on AndroidLyca APN Settings iPhoneMMS Not Sending on iPhoneBest APN Settings for Roaming5G Not Working on SamsungSIM Card No Service Fix
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Troubleshooting checklist

Each step in this list follows from the last not working

Step 1Check APNStep 2Select APNStep 3Toggle flight modeStep 4Restart phoneStep 5Test data

Frequently Asked Questions About Internet Not Working on Samsung

Why is your network mobile data not working?
your network mobile data may stop working due to an incorrect APN, a temporary network outage, an expired data plan, or a SIM issue. Follow the steps in this guide to identify and fix the cause.
How do I reset my your network APN settings?
On Android: go to Settings → Network → Mobile Networks → Access Point Names, then tap the menu and select 'Reset to default'. On iPhone: go to Settings → General → Transfer or Reset iPhone → Reset → Reset Network Settings.
Does your network have a network outage in my area?
Check your network website or their social media channels for real-time outage information. You can also check third-party sites like Downdetector for user-reported your network outages.
Why does your network show signal but no internet?
If your network shows signal but no internet, the APN settings may be incorrect or missing. Check the APN settings on your device and compare them to the correct your network values in our APN guide.
How long does a your network outage usually last?
Most your network outages are resolved within a few hours. For planned maintenance, your network usually notifies customers in advance. Check your network status page for current updates.