Cellular data flows but DNS lookups fail.

Fix: Turn off any active VPN. Test by opening a browser and visiting an IP address directly (e.g. 1.1.1.1) — if that works, it's a DNS issue. If not, no data at all.

For DNS specifically: iPhone → Settings → Wi-Fi → tap the Wi-Fi you're on → Configure DNS → Automatic. On cellular, DNS is set by the carrier and can't be overridden without a Private DNS profile.

Still stuck?

Reach Openline support 24/7 through any of these channels:

When you write in, include your purchase code (the OL-… code we emailed you) and, if the eSIM is already installed, its ICCID (Settings → Cellular → tap the Openline line). That's enough for us to find your plan and diagnose without back-and-forth.