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iD Mobile Internet Not Working Fix Guide
The steps below are ordered by how often each one turns out to be the actual cause. On Three's network specifically, an outage or an incorrect APN account for most reported faults, so start there before assuming a hardware issue.
As an MVNO, iD Mobile doesn't operate its own masts — it buys wholesale access to Three's infrastructure. That means a Three network outage will affect iD Mobile too, and the fastest way to confirm a wider problem is to check Three's live status page rather than assuming it's a fault with your phone.
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Step 1: Check for iD Mobile Network Outage
Before changing any settings, check whether iD Mobile is experiencing a network outage in your area. An outage is the most common reason for sudden mobile data loss across an area.
Check iD Mobile status: https://www.idmobile.co.uk/support/network-status
If there is a confirmed outage in your area, no settings changes will help — wait for iD Mobile to restore the network and check the status page for estimated recovery time. You can also check Downdetector for user-reported issues.
Step 2 — Quick iD Mobile Fixes to Try First
These five checks, worked through in order, — together they resolve the large majority of iD Mobile data faults without needing to touch APN settings at all.
- Toggle Aeroplane Mode on for 30 seconds, then off — this is the fastest way to force a clean re-registration on the network.
- Fully restart the phone if that doesn't help — this clears cached network data that a simple toggle sometimes leaves behind.
- Double-check Mobile Data is enabled: Settings › Mobile Data (iPhone) or Settings › Connections › Mobile Data (Android).
- Look at your data balance in My iD Mobile — running out of allowance produces symptoms that look exactly like a network fault.
- Power off, remove, and reseat the SIM card — a marginal contact on the SIM is a surprisingly common cause of intermittent data.
Step 3: Verify iD Mobile APN Settings
A wrong APN is a leading cause of data problems, especially following a factory reset, OS update, SIM swap, or a move from another network. Check and correct it if needed.
Correct iD Mobile APN: data.id
How to check APN settings on Android
- Navigate to Settings › Connections › Mobile Networks › Access Point Names (Samsung) or Settings › Network & internet › Mobile network › Access point names (Pixel).
- Open the iD Mobile APN entry and confirm it reads exactly data.id — watch for extra spaces.
- Check APN Type includes at minimum default and supl.
- If the entry is missing or wrong, the iD Mobile APN settings guide has the full set of values.
- Save, activate with the radio button, and restart.
How to check on iPhone
- Look at Settings › Mobile Data › Mobile Data Network, if shown.
- Confirm it displays data.id.
- If greyed out, the carrier bundle manages it — check Settings › General › About for an update.
Step 4 — More Advanced iD Mobile Fixes
- Check for and install a pending OS update: Settings › System › Software Update — this occasionally resolves registration faults on its own.
- iPhone: check for a carrier settings update at Settings › General › About and install it if offered.
- Reset network settings as a next step: Android — APN settings, ⋮ › Reset to Default. iPhone — Settings › General › Transfer or Reset iPhone › Reset › Reset Network Settings. This wipes saved Wi-Fi passwords too.
- Test your SIM in a different phone — if it works there, the fault is with your original handset, not the network or SIM.
- Test a different SIM in your phone — if that one connects fine, your iD Mobile SIM or account is the likely cause.
- Request a free SIM replacement from iD Mobile if the problem persists after all of the above.
- Call iD Mobile support on 0333 003 7777 or live chat via iD Mobile website for an account-level check — they can also confirm whether there's a known issue with your local mast.
Common Causes of iD Mobile Data Not Working
| Symptom | Likely Cause | Fix |
|---|---|---|
| After iOS/Android update | OS update overwrote network settings | Reset network settings and re-enter APN |
| Sudden data loss, was working before | Network outage or SIM registration issue | Check status page; toggle Aeroplane Mode |
| Works on Wi-Fi but not mobile data | Mobile data toggle off or APN wrong | Enable mobile data in Settings; verify APN |
| After factory reset / phone change | APN settings not transferred | Re-enter APN settings: data.id |
| Data works then stops randomly | Poor signal, congestion, or SIM contact issue | Reseat SIM; check coverage map |
| Very slow speeds (not outright broken) | Data throttling, network congestion | Check if data cap hit; try different time of day |
| Signal bars showing but no internet | Incorrect APN or data plan expired | Verify APN; check data balance in My iD Mobile |
Frequently Asked Questions — iD Mobile Internet Not Working
How do I fix iD Mobile mobile data not working?
First, try Aeroplane Mode — on for 30 seconds, then off — which re-registers your phone on the network and fixes many cases outright. If data is still down, navigate to Settings › Mobile Networks › Access Point Names to confirm the APN reads exactly data.id. Check https://www.idmobile.co.uk/support/network-status for a known outage. If it's still not working after that, restart the phone and re-enter the APN from scratch.
What is the iD Mobile APN for mobile data?
data.id — that's the value. The iD Mobile APN settings guide has the rest of the fields too, in case you need to set up MMS or check the values on a second device.
Is iD Mobile down right now?
First, check https://www.idmobile.co.uk/support/network-status for iD Mobile's official outage status. If it looks fine there but you're still having trouble, Downdetector sometimes picks up localised issues faster.
Why does iD Mobile show signal but no internet?
Seeing signal bars confirms registration on the mast, nothing else on the mast — it says nothing about whether data is actually flowing. Confirm: Mobile Data is on in Settings, APN matches data.id exactly, you haven't exhausted your data allowance, and there's no outage in your area right now.
How do I reset iD Mobile APN settings?
Android users should open APN settings and tap ⋮ › Reset to Default. iPhone users: Settings › General › Transfer or Reset iPhone › Reset › Reset Network Settings — this wipes Wi-Fi passwords as a side effect, so have those handy. Re-enter data.id afterwards.
iD Mobile data stopped working after a phone update — what do I do?
This commonly happens as a side effect of OS updates overwriting custom network settings. Go to Settings › Mobile Networks › Access Point Names and put data.id back in. iPhone owners should also check Settings › General › About for a carrier update, then restart.
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