Tesco Mobile internet not working? Full step-by-step fix guide — check outage, reset APN, toggle settings on Android and iPhone UK.
Diagnosing why Tesco Mobile internet has stopped working
There are several common reasons why Tesco Mobile mobile data, calls or texts might stop working. These include an incorrect APN configuration, a temporary network outage in your area, a SIM card that needs re-seating, or a software issue on your device. This guide walks through each possible cause and the fix for each one.
Follow these steps in order — most issues are resolved by step 1 or 2
Quick checks before resetting Tesco Mobile APN settings
Before changing any settings, visit the Tesco Mobile APN hub or check a third-party site like Downdetector to confirm whether there is a known Tesco Mobile outage in your area. If the network is down, you simply need to wait for Tesco Mobile to restore service — no settings changes will help during an active outage.
Follow these steps in order — most issues are resolved by step 1 or 2
Step-by-step Tesco Mobile data fix on Android and iPhone
Pull down your notification shade and tap Aeroplane Mode to enable it. Wait ten seconds, then tap again to disable it. This forces your phone to drop its current connection and reconnect fresh to the Tesco Mobile mast. This fixes the majority of temporary signal and data issues.
Follow these steps in order — most issues are resolved by step 1 or 2
Escalating persistent Tesco Mobile data issues to support
Hold the power button and select Restart. A full restart clears the modem cache and re-registers your SIM on the Tesco Mobile network. This fixes many data and signal issues that toggling aeroplane mode does not resolve.
Follow these steps in order — most issues are resolved by step 1 or 2
Step 4 — Re-seat your SIM card
Power off your phone completely. Use a SIM ejector tool or a straightened paperclip to open the SIM tray. Remove the SIM card, inspect the gold contacts for dirt or corrosion, and gently clean them with a dry cloth if necessary. Reinsert the SIM firmly and power the phone back on.
Follow these steps in order — most issues are resolved by step 1 or 2
Step 5 — Check your APN settings
Setting
Value
APN Name
prepaydata
Username
(leave blank)
Password
(leave blank)
MMSC
http://mmsc.mms.o2.co.uk:8002
MMS Proxy
82.132.254.1
MMS Port
8080
Authentication Type
PAP
APN Type
default,supl,mms
An incorrect APN is a common cause of mobile data not working even when you have signal. Go to Settings → Mobile Network → Access Point Names and verify the APN values match the Tesco Mobile recommended settings. Visit the Tesco Mobile APN hub for the correct values, or search this blog for the Tesco Mobile APN guide for your specific device.
Follow these steps in order — most issues are resolved by step 1 or 2
!
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
On Android: Go to Settings → General Management → Reset → Reset Network Settings. This restores default APN settings, clears saved Wi-Fi networks and resets Bluetooth — it does not delete your apps or personal data.
On iPhone: Go to Settings → General → Transfer or Reset iPhone → Reset → Reset Network Settings. Your iPhone will restart and reconnect to Tesco Mobile with default settings.
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Follow these steps in order — most issues are resolved by step 1 or 2
Step 7 — Contact Tesco Mobile support
If none of the above steps resolve the issue, contact Tesco Mobile customer support. There may be a problem with your account, your SIM may need replacing, or there may be a localised network fault. Have your account number and phone IMEI ready (dial *#06# to find your IMEI). Visit the Tesco Mobile APN hub for contact details.
Tesco Mobile 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 Tesco Mobile 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 Tesco Mobile have a network outage in my area?
Check the Tesco Mobile website or their social media channels for real-time outage information. You can also check third-party sites like Downdetector for user-reported Tesco Mobile outages.
Why does Tesco Mobile show signal but no internet?
If Tesco Mobile 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 Tesco Mobile values in our APN guide.
How long does a Tesco Mobile outage usually last?
Most Tesco Mobile network outages are resolved within a few hours. For planned maintenance, Tesco Mobile usually notifies customers in advance. Check the Tesco Mobile status page for current updates.
