Diagnosing why Tesco Mobile internet has stopped working
Tesco Mobile data, calls or texts can drop for a few recurring reasons — a wrong APN, a local outage, a SIM needing reseating, or a device software fault.
Troubleshooting checklist
Working down this Tesco Mobile list in sequence normally resolves it quickly
Quick checks before resetting Tesco Mobile APN settings
Check the Tesco Mobile hub or Downdetector for a known outage before touching settings — during an outage no change helps.
Troubleshooting checklist
Following the Tesco Mobile sequence below typically sorts it early
Step-by-step Tesco Mobile data fix on Android and iPhone
Swipe down, tap Aeroplane Mode on, wait ten seconds, then off. This forces a fresh link to the nearest Tesco Mobile mast.
Troubleshooting checklist
Tesco Mobile issues usually clear within the opening steps if taken in order
Escalating persistent Tesco Mobile data issues to support
Hold power and choose Restart — a full reboot clears the modem cache and re-registers the SIM with Tesco Mobile.
Troubleshooting checklist
Taken in order, these Tesco Mobile steps normally resolve things fast
Step 4 — Re-seat the SIM on Tesco Mobile when internet is down
Switch off the phone, pop out the SIM tray, check the contacts for dirt, wipe gently, then reseat and power up.
Troubleshooting checklist
Following the order resolves most Tesco Mobile cases early
Step 5 — Check Tesco Mobile's APN settings when internet is down
| 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 |
A wrong APN often stops data despite full signal. Check Settings → Mobile Network → Access Point Names against Tesco Mobile's recommended values.
Troubleshooting checklist
Taken in order, these Tesco Mobile steps usually sort it fast
Step 6 — Reset Tesco Mobile's network settings when internet is down
Android: Settings → General Management → Reset → Reset Network Settings restores Tesco Mobile's default APN and clears Wi-Fi/Bluetooth, leaving apps intact.
iPhone: Settings → General → Transfer or Reset iPhone → Reset → Reset Network Settings — the phone restarts on Tesco Mobile defaults.
Troubleshooting checklist
The Tesco Mobile sequence below usually resolves it near the top
Step 7 — Contact Tesco Mobile support when internet is down
Still stuck? Tesco Mobile support is next — an account issue, failing SIM, or local fault. Have your account number and IMEI (dial *#06#) ready.
Troubleshooting checklist
Taken in order, Tesco Mobile problems resolve near the top