TL;DR: Most RoameSIM plans configure APN automatically. Only set an APN if your order lists one. Wrong manual APNs cause “connected but no data.”
When to touch APN
- You have signal / LTE but no internet.
- Your RoameSIM email or track page shows an APN value.
- Support asked you to add a specific APN.
Android: add an APN
- Settings → Network & internet → SIMs / Mobile network.
- Select the eSIM → Access Point Names.
- Add APN → Name: RoameSIM → APN: value from your order.
- Save → select that APN → restart.
iPhone: APN
Many iPhones hide APN for carrier profiles. If Mobile Data Network appears under the eSIM line, enter the provided APN only in the Cellular Data APN field. Otherwise rely on automatic settings and fix roaming/line selection first.
Common mistakes
- Copying a random APN like “internet” from forums.
- Editing the home SIM APN instead of the travel eSIM.
- Skipping data roaming checks.
Related guides
Connected but no data · Installed but no internet · Troubleshooting hub
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RoameSIM plans include install details by email after purchase.
Frequently Asked Questions
Do travel eSIMs need a manual APN?
Often no - the profile sets APN automatically. Add one only if your order shows an APN value or support instructs you.
Where do I find my RoameSIM APN?
Check the delivery email and order tracking page fields (apn_value). Leave blank if empty.
Can the wrong APN block internet?
Yes. Delete custom APNs you added by mistake and return to automatic/default.
Is APN the same as Data Roaming?
No. Roaming allows foreign networks; APN defines how data sessions are created.