TL;DR: Bars without apps loading means a data-path problem. Confirm the eSIM is the Mobile Data line, roaming is On, APN is correct, and VPN is off.
Fix connected-but-no-data
- Set Mobile Data / Cellular Data to the travel eSIM.
- Enable Data Roaming on that line.
- Turn Wi‑Fi Off for the test.
- Disable VPN, Private Relay, Private DNS.
- Check APN if provided - APN settings guide.
- Airplane mode toggle.
iPhone extras
Low Data Mode Off · Limit IP Address Tracking Off. See iPhone guide and roaming guide.
Android extras
Data saver Off · check Mobile data always active if present. Samsung: Galaxy fixes.
Slow vs no data
If pages load but crawl, read why is my eSIM slow.
Support & shop
info@roamesim.io · Browse RoameSIM · Hub: 12 fixes
Frequently Asked Questions
Why do I have signal bars but no data?
The phone registered on a network but is not routing IP traffic - often wrong data SIM, roaming off, bad APN, or VPN.
Does LTE/5G icon guarantee internet?
No. You can attach to a network without a working data session.
Should I change APN immediately?
Only if RoameSIM provided an APN value or support asked you to. Wrong APN can make things worse.
Can Private Relay or VPN block data?
Yes. Disable them temporarily to test.