If your India eSIM connects to the mobile network but websites and apps won’t load, the problem is often related to the APN configuration. Fortunately, most devices configure the APN automatically, and when manual setup is required it only takes a minute.
This guide explains what an APN is, when you should change it, how to configure it on iPhone and Android, and what to do if your India eSIM still doesn’t have internet.
Quick answer: if manual configuration is required, use APN: data.esim. Leave all other fields empty unless instructed otherwise.
Top India eSIMs
What Is an APN?
APN stands for Access Point Name. It tells your phone how to connect to the mobile data network.
Without the correct APN, your phone may:
- Show mobile signal but have no internet.
- Load websites very slowly.
- Display connection errors.
- Fail to use mobile data.
Most modern smartphones receive the correct APN automatically during eSIM installation, but manual configuration is sometimes necessary.
India eSIM APN Settings
| Field | Value |
|---|---|
| Name | NoveSIM |
| APN | data.esim |
| Username | Leave blank |
| Password | Leave blank |
| Authentication Type | None |
| Proxy | Leave blank |
| Port | Leave blank |
| MMSC | Leave blank |
| MMS Proxy | Leave blank |
| MMS Port | Leave blank |
| APN Type | default,supl (if required) |
When Should You Change the APN?
You usually only need to configure the APN manually if:
- Your phone has signal but no internet.
- Apps cannot connect.
- Websites don’t load.
- Your eSIM connects but mobile data doesn’t work.
- Customer support specifically asks you to verify the APN.
If your internet is already working normally, you do not need to change anything.
How to Change APN on iPhone
- Open Settings.
- Select Cellular.
- Choose your India eSIM.
- Open Cellular Data Network.
- Enter data.esim in the APN field.
- Leave Username and Password empty.
- Return to the previous screen.
- Restart your iPhone if necessary.
How to Change APN on Android
- Open Settings.
- Go to Network & Internet, Connections or SIM Manager.
- Select the India eSIM.
- Open Access Point Names (APN).
- Create a new APN or edit the existing one.
- Enter data.esim.
- Save the APN.
- Select the new APN.
- Restart the phone or toggle Airplane Mode.
Recommended Mobile Settings
| Setting | Recommended Value |
|---|---|
| India eSIM | Enabled |
| Mobile Data | India eSIM |
| Calls | Primary SIM |
| SMS | Primary SIM |
| Data Roaming (India eSIM) | ON |
| Data Roaming (Primary SIM) | OFF |
| Automatic Data Switching | OFF |
| Network Selection | Automatic |
| Preferred Network | 5G Auto or 4G/LTE |
What If Mobile Data Still Doesn’t Work?
If you’ve entered the correct APN and still have no internet, follow these steps:
- Confirm the India eSIM is enabled.
- Select it for Mobile Data.
- Enable Data Roaming.
- Verify the APN is data.esim.
- Turn off Automatic Data Switching.
- Leave Network Selection on Automatic.
- Enable Airplane Mode for 30 seconds.
- Restart your phone.
Most connection problems are solved after completing these steps.
Common APN Mistakes
- Typing the APN incorrectly.
- Entering unnecessary usernames or passwords.
- Saving the APN but not selecting it.
- Forgetting to restart the phone.
- Leaving Mobile Data on the primary SIM.
- Data Roaming is disabled.
Can You Keep Your Primary SIM?
Yes. Your primary SIM can remain active for calls, SMS and banking verification codes while your India eSIM provides mobile internet.
Remember to disable Data Roaming on your primary SIM to avoid unexpected roaming charges.
Does WhatsApp Work?
Yes. WhatsApp continues using your existing phone number while your India eSIM provides the internet connection.
Travel Tips
- Install your eSIM before departure.
- Only change the APN if necessary.
- Keep your QR code until the trip ends.
- Download offline Google Maps.
- Use hotel WiFi for software updates.
- Carry a power bank.
- Restart your phone after changing network settings.
Related India Guides
- India eSIM
- How to Install an India eSIM
- How to Activate an India eSIM
- How to Use an India eSIM
- India eSIM Not Working
- No Internet on India eSIM
FAQ
What is the correct APN for an India eSIM?
Use data.esim. Leave Username and Password empty unless instructed otherwise.
Should I change the APN if everything works?
No. If your mobile internet is working normally, you do not need to modify the APN settings.
My phone has signal but no internet. Is it the APN?
Possibly. Check that the APN is set to data.esim, then restart your phone.
Can an incorrect APN cause slow internet?
Yes. An incorrect APN can prevent mobile data from working properly or cause unstable connectivity.
Do I also need Data Roaming enabled?
Yes. Most travel eSIMs require Data Roaming to be enabled on the India eSIM.
Final Recommendation
The correct APN is one of the most important settings for your India eSIM. If your phone has signal but no internet, verify that the APN is data.esim, enable Data Roaming and restart your device.
In most cases, these simple steps restore your mobile data connection within a few minutes.