NexKit eSIM

Evidence-led guide

eSIM installed but no internet: a provider-neutral checklist

Last reviewed 26 August 2026 · every figure links to the provider page it came from

Work through these in order. They are arranged by how often each one turns out to be the actual cause, so the earliest steps fix the most cases. The last three are not phone problems at all — they are the plan doing what its policy says it will do.

How NexKit checked this

Every figure below was read from the provider’s own terms, help centre or product page on the date shown, and links back to that page. Each fact also states its reach, so a policy read from one product family is never presented as covering everything a provider sells. Where a provider states a policy but publishes no number in the pages we checked, this page says so and lists what we checked. NexKit is not affiliated with any provider named here and earns nothing from these links.

The checklist

  1. Step 01

    Is the eSIM actually installed on this device?

    Check: Open your cellular or mobile-network settings and confirm the travel plan appears as its own line. An emailed QR code that was never scanned is not an installed eSIM.

    If that is the problem: Install it while you still have Wi-Fi. Most travel eSIM profiles can only be downloaded once, so do this before you delete anything.

    General device guidance. Not a provider-specific published fact — exact wording and menu paths vary by device and operating system version.

  2. Step 02

    Is the travel eSIM the line selected for cellular data?

    Check: On iPhone: Settings → Cellular → Cellular Data, then select the travel line. A dual-SIM phone will otherwise keep trying to use your home line.

    If that is the problem: Select the travel line for data. This is the single most common cause of “installed but no internet”.

    Published guidance — Apple Support

  3. Step 03

    Is data roaming enabled on the travel line?

    Check: Travel eSIMs normally connect as a roaming guest on a local network, so the roaming toggle on that line usually has to be on even though you bought the plan for that country.

    If that is the problem: Enable data roaming on the travel line only. Leave it off on your home line so you do not run up home-carrier roaming charges.

    General device guidance. Not a provider-specific published fact — exact wording and menu paths vary by device and operating system version.

  4. Step 04

    Does this plan need its APN entered manually?

    Check: Some profiles do not configure the APN automatically, and some need it specifically for the personal hotspot to work. The provider states this on the plan's installation page.

    If that is the problem: Enter the APN exactly as the provider publishes it, including capitalisation, then restart the device.

    Published guidance — Airalo Help Center

  5. Step 05

    Has the line registered on a network yet?

    Check: Look for an operator name on the travel line rather than “No Service” or “Searching”. Registration can take a couple of minutes after landing.

    If that is the problem: Toggle airplane mode, then fully power the device off and on. If it still will not register, try selecting the operator manually in network settings.

    General device guidance. Not a provider-specific published fact — exact wording and menu paths vary by device and operating system version.

  6. Step 06Plan policy, not a fault

    Has the plan actually started, or has it already expired?

    Check: Some plans start counting down when you install them, others when they first connect at the destination. A plan installed weeks early can already be spent.

    If that is the problem: Check the plan's activation policy with the provider. If it started early, the remedy is a new plan rather than a settings change.

    Published guidance — Airalo Help Center

  7. Step 07Plan policy, not a fault

    Is it connected but slow rather than dead?

    Check: If pages load eventually but video will not play, you have probably passed the plan's daily high-speed allowance rather than lost connectivity.

    If that is the problem: This is fair use, not a fault. It normally restores at the next reset. Check what your provider publishes about its limit.

    General device guidance. Not a provider-specific published fact — exact wording and menu paths vary by device and operating system version.

  8. Step 08Plan policy, not a fault

    Is it only the hotspot that fails?

    Check: If the phone itself is online but tethered devices are not, the cause is usually plan policy or a missing APN rather than the phone.

    If that is the problem: Check whether your plan permits tethering at all, and whether it needs a manual APN first.

    General device guidance. Not a provider-specific published fact — exact wording and menu paths vary by device and operating system version.

When the phone is fine and the plan is the problem

3 of the steps above are not faults. They are the plan behaving as its published policy says it will. No amount of restarting changes them, and support cannot either.

What your provider publishes about fair useThe allowance, the throttled speed, and who publishes neither.Whether your plan really permits tetheringCaps, shared allowances, and the manual APN trap.

If the diagnosis is the plan rather than the phone, compare what providers actually publish.

If none of the above fixes it, the fastest route is your provider’s own support channel with your order reference and the eSIM’s ICCID to hand. NexKit cannot reissue or repair a profile.

Next step

If the diagnosis is the plan rather than the phone, compare what providers actually publish.

Narrow it down by tripDestination, trip length, data need and hotspot need, with the reasoning shown. Runs on demonstration data while real plans are verified.See a destination in detailWhich network a provider actually names for Japan, and the same policy facts applied to one country.