You're traveling abroad, using an eSIM on your phone, and you try to share that connection with your laptop or tablet through tethering (Personal Hotspot / Internet sharing) — but it just won't connect, or it connects and crawls. This happens more often than you'd expect, especially on a first trip abroad or after a long time away from international travel. The cause is rarely a single thing: device settings, the local network situation, and your plan's conditions often overlap. Jumping straight to reinstalling or resetting can actually make it harder to tell what the original problem was. This guide walks you through how to calmly narrow things down, step by step, in plain language for first-timers (general guidance as of June 2026).
- Check in this order: ① tethering is on ② the eSIM has working data ③ the receiving device's settings
- First confirm the phone alone can open a webpage
- Recheck the receiving device's Wi-Fi, airplane mode, and password
- Slow speeds can come from local network congestion or a fair-usage policy
- Phone-number calls/SMS won't work, but app-based calls (WhatsApp, etc.) are fine
The short version: check these three things in this order — ① is tethering itself turned on, ② does the eSIM side actually have working data, and ③ are the settings right on the device you're connecting (PC, tablet, etc.). Working through them in sequence makes the cause much easier to find. Sometimes the phone itself is perfectly online and only the sharing setting is missing; other times the phone isn't connected at all. Figuring out which situation you're in first is the trick to not going in circles.
A quick look at how tethering works
Tethering shares the mobile data your phone is receiving with a PC or tablet, usually over Wi-Fi. That means two things have to be true at once for it to work: the phone itself has to be online, and the sharing switch has to be on. If either one is missing, the receiving device simply sees it as "won't connect." Keep this in mind and the steps below will make a lot more sense.
Three basics to check first
When tethering acts up, checking these three points in order — before you rush into a restart or reinstall — saves a lot of wasted effort.
1. Is tethering (Internet sharing) turned on?
If the sharing feature is off on the phone, the PC or tablet obviously can't see it. On iPhone, check Settings → Personal Hotspot; on Android, look under Settings → Network & internet → Hotspot & tethering. Toggling it off and back on once can prompt the phone to re-register it. Note that some devices automatically stop sharing when the screen locks or after a period of inactivity, so keeping the phone's screen on while you connect tends to be more stable.
2. Does the eSIM have working data?
If the phone itself isn't online, tethering can't work either. Before trying to tether, open a website in the phone's own browser to confirm it connects. If the phone alone can't connect, you'll need to sort out the eSIM side first — line activation, data roaming, and the APN (access point name). The basic flow from purchase to setup to arrival is covered in our setup guide.
3. The receiving device's settings (PC, tablet)
The device receiving the connection might be in airplane mode, or still hooked to a different Wi-Fi network. Check that your phone's name appears in the Wi-Fi list and that the password you entered is correct. Old saved connection details from a previous session can also cause failures, so if that happens, remove the saved network and reconnect — it usually steadies things.
How the checks differ by device
Between iPhone and Android — and depending on the receiving device — the places to look differ slightly. Here are the most common spots to check.
| What to check | iPhone | Android (names vary by model) |
|---|---|---|
| Tethering on/off | Settings → Personal Hotspot | Settings → Network → Tethering |
| Which line (eSIM) is selected | Settings → Cellular → check primary line | Settings → SIM → check data SIM |
| Data roaming | Cellular → Cellular Data Options | Mobile network → Roaming |
| APN settings | Cellular → APN (if needed) | Access Point Names (APN) |
* Menu names may differ depending on your OS version and device model. To confirm whether your device supports eSIM and tethering, see our compatible devices page. Older models, and phones bought in certain countries, can have different specs, so it's reassuring to check once before you travel.
When it connects but runs slow
If the connection works but is extremely slow, the issue is often the network side rather than your device settings. Matching each symptom to "where to look" makes the likely cause easier to spot.
| Symptom | Likely main cause | First thing to try |
|---|---|---|
| Won't connect at all | Tethering is off / phone not connected | Toggle sharing; open a site on the phone itself |
| Connects but drops out | Auto-stop from screen lock; weak signal | Keep the screen on; change location |
| Connects but slow | Local network congestion; fair-usage policy | Change time/place; check your usage |
Local network congestion and coverage
eSIM speeds depend on the local partner network, the coverage area, and how busy things are at a given time. Crowded places like stations, airports, tourist spots, and event venues, as well as busy evening hours, can make it harder to get good speeds. Trying again from a different place or at a different time can sometimes help.
Possible speed adjustment / fair-usage policy
Even unlimited-type or high-capacity plans may have a fair-usage policy in place, where speeds are adjusted after a certain amount of usage. This exists so that many users can have a comfortable experience, and continuous tethering for video streaming or large file transfers tends to reach those thresholds faster. Please check the latest information for your plan's conditions before and after purchase (conditions can vary by plan and over time). For how to think about unlimited plans and what to watch for, see our unlimited eSIM page.
Whether tethering itself is allowed
Depending on the plan, tethering (sharing with other devices) may be treated differently from normal data use. If you plan to rely on tethering, it's reassuring to confirm support beforehand. You can compare the differences between plans by country, data amount, and number of days on our comparison page.
Steps to try, in order
When you can't pin down the cause, it's best to start with the lowest-impact steps. Stick to restarts and re-setups that are easy to undo, and avoid jumping straight to deleting or resetting.
- Turn tethering off, wait a few dozen seconds, then turn it back on
- Toggle Wi-Fi off and on on the receiving device, or remove the saved connection and reconnect
- Switch the phone to airplane mode and back (to re-establish the line)
- Restart both the phone and the receiving device
- Change location or time of day to check for signal or congestion effects
- If the phone alone still won't connect, recheck line activation, roaming, and the APN
Working through these in order helps you spot the cause based on which step fixed it. If it still isn't resolved, find more detailed help on our troubleshooting page, or reach out with specific questions about purchase or setup through our contact page.
Who relies on tethering vs. who's fine with normal use
How much you actually use tethering changes what you need to prepare. Thinking ahead about which group you're closer to helps prevent trouble and running out of data on the day.
- Better off confirming generous capacity and tethering support: lots of PC work for business trips or study abroad / long online meetings or video streaming / wanting to connect several devices at once
- Often fine with a standard capacity plan: phone-centered use, with the PC only for brief arrival messages or email checks / treating tethering as emergency-only
If you want to rely heavily on tethering, reviewing our related unlimited eSIM guides alongside this can help you weigh the balance between capacity and speed conditions.
Preparing for comfortable tethering
To cut down on trouble, a little prep before you leave goes a long way. In most cases, it's reassuring to install the eSIM before you travel and activate the line after you arrive (activation timing varies by plan, so check the guidance at purchase). And if you expect to use a lot of data through tethering — PC work, video streaming, and the like — choosing a plan with some room in capacity and number of days reduces the worry of running short partway through. You can check your purchased eSIMs and remaining data from My Account.
Bloomy plans are data-only. The only things that won't work are calls and SMS tied to a phone number (voice calls and text messages). App-based calls that use data — WhatsApp, Messenger, FaceTime, and similar — work as normal wherever you have a working data connection. For situations that require a phone number or SMS verification, it's worth lining up an alternative method as well. Note that communication quality varies with the local network, your device, and the area.
What you can do with Bloomy
If you want to use tethering at your destination, the quickest path is to compare plans by country, data amount, and number of days. Bloomy focuses on a comparison flow that's easy to follow even for first-timers, along with setup support after purchase. Available plans and pricing can change depending on conditions like country and capacity, so it's reassuring to confirm the latest details on our comparison page — please check pricing at the time of purchase. Capacity guidance and conditions may change over time (as of June 2026).
