Why is my eSIM not connecting, and how do I fix it?
Work through the standard fixes in order: confirm the eSIM is enabled as your data line, data roaming is ON for the eSIM (required for travel eSIMs), the correct APN is set, and your plan is actually activated. Then select a network manually and restart the phone. Ninety percent of "dead" eSIMs are one of these five settings.
The single most counterintuitive setting causes most failures: data roaming must be ON for the travel eSIM. Travel eSIMs technically roam on local networks by design, and the roaming toggle that protects you from charges on your home SIM blocks the travel eSIM from working at all. Turning it on costs nothing extra; the plan price is the plan price.
The rest of the checklist in order: confirm the eSIM is switched on and selected as the data line (Settings > Cellular on iPhone, SIM settings on Android). Check whether your plan needs manual activation in the provider’s app: some start at purchase, some at install, some at first use, and an unactivated plan connects to nothing. Verify the APN settings against the provider’s instructions; most profiles configure this automatically, but a wrong APN means signal bars without internet. Then try manual network selection: pick the local carrier your provider lists as a partner instead of letting the phone choose. And the classic that still works: airplane mode for ten seconds, or a full restart.
If nothing helps, contact the provider’s support before burning your vacation hours on forums: they see your SIM’s status server-side and can re-provision a broken profile in minutes. This is also where providers genuinely differ, and why we score support quality: aloSIM and Saily answer fast and in plain language, while some discounters leave you reading FAQ pages alone at midnight. One prevention beats all cures: install and test the eSIM on home Wi-Fi before departure.