iPhone 18 hotspot: setup, transfer problems, and fixes

New iPhone, same hotspot questions. If you’re picking up an iPhone 18, an iPhone 18 Pro or Pro Max, or any other model in the lineup, and Personal Hotspot suddenly stopped behaving, this guide covers what you need to know: how to set up the hotspot on the new model, why hotspot problems are so common right after transferring from an old iPhone, and the honest answer to whether the new hardware changes the one hotspot problem everyone wants fixed.

The short version up front: Personal Hotspot works the same on iPhone 18 as on every recent iPhone. That includes every model in the lineup. The base iPhone 18, the 18 Pro, the 18 Pro Max and every other variant share the same hotspot feature, the same five-device Wi-Fi limit and the same settings screen. Setup is identical, the settings live in the same place, and the connection dropping when your phone goes idle is still there, because that behavior comes from iOS power management, not from the hardware. What is genuinely different about a new phone is the transfer process, and that’s where most iPhone 18 hotspot complaints actually come from.

We’ll update this article if the iPhone 18 turns out to ship any real change to hotspot behavior. Based on how every recent model launch has gone, don’t expect one.

How to turn on Personal Hotspot on iPhone 18

Identical to previous models:

1. Open Settings
2. Tap Personal Hotspot (or Settings → Cellular → Personal Hotspot on some carrier configurations)
3. Toggle Allow Others to Join on
4. Note the Wi-Fi Password shown on the same screen
5. On your laptop or tablet, find the iPhone’s name in the Wi-Fi list and enter that password

Up to five devices can connect over Wi-Fi at once, plus Bluetooth and USB tethering as alternatives. If any of that is new to you, our complete Personal Hotspot setup guide walks through every screen and every connection method, and it applies to the iPhone 18 without changes.

Why hotspot breaks right after moving to a new iPhone

This is the real iPhone 18-specific story. Hotspot issues spike around every new model launch, and it’s almost never the new phone’s fault. It’s the transfer.

When you move to a new iPhone, three separate things have to come across cleanly: your eSIM (or physical SIM activation), your carrier profile, and your settings from backup. Any of the three can land in a half-finished state, and Personal Hotspot is one of the first features to break when they do. Here’s each failure mode and its fix.

1. eSIM transferred but hotspot is greyed out

The most common one. The eSIM moves over during setup, your calls and data work, but Settings → Personal Hotspot is greyed out or missing entirely on the new phone.

What happened: the carrier profile on the new device hasn’t fully provisioned tethering yet. Your carrier’s system knows the eSIM moved, but the tethering entitlement lags behind.

Fix, in order:

1. Restart the iPhone 18. Yes, really. This clears a surprising share of post-transfer glitches.
2. Toggle the line: Settings → Cellular → tap your line → turn it off, wait 10 seconds, turn it back on. This forces a fresh carrier profile pull.
3. Check for a carrier settings update: Settings → General → About and wait a few seconds. If a prompt appears, install it.
4. Still greyed out after all three? Call your carrier and ask them to re-push the tethering entitlement to the new device. This takes them a minute.

Our seven causes of greyed-out Personal Hotspot covers the remaining rarer causes if none of that works.

2. Devices remember the old phone, not the new one

Your laptop was paired to your old iPhone’s hotspot for years. Now there’s a new phone with the same name broadcasting a different network identity, and the laptop either refuses to connect or connects and drops instantly.

Fix: on the connecting device, forget the saved network and rejoin fresh. On a Mac that’s System Settings → Wi-Fi → your iPhone → Forget This Network. On Windows, Manage known networks → Forget. Then reconnect using the password from the new phone’s Personal Hotspot screen. Note that the new iPhone generates a new random hotspot password during setup, so the old saved password is wrong anyway. Full details in our hotspot password guide.

3. Instant Hotspot doesn’t see the new phone

If your Mac or iPad used to show your old iPhone under “Personal Hotspot” in the Wi-Fi menu automatically, the new phone sometimes doesn’t appear there for a while.

Fix: make sure the iPhone 18 is signed in to the same Apple ID, Bluetooth is on for both devices, and give iCloud a few minutes to sync the new device into your account. Signing out and back into iCloud on the Mac forces it if patience runs out.

Does the Pro or Pro Max change anything for hotspot?

No, and it’s worth saying plainly because the question comes up with every launch.

The Pro models differ in camera, display and chip. None of those touch tethering. Personal Hotspot is a carrier-provisioned feature that runs on the cellular modem, and the modem behaves the same across the lineup. The five-device Wi-Fi limit, the Bluetooth and USB options, the Maximize Compatibility toggle and the idle disconnection are identical on the base model and the most expensive one in the range.

The same applies to any other variant Apple ships in this generation, whatever it ends up being called. If a model change genuinely altered hotspot behaviour it would be an iOS change, not a hardware one, and it would show up on every phone running that version rather than on one price tier.

Where the models do differ in practice is battery headroom. Tethering is one of the heaviest sustained loads you can put on a phone, since the cellular modem and a Wi-Fi access point run at full tilt at the same time. A physically larger phone has more room for a battery, so it will simply last longer while sharing a connection. That’s a runtime difference, not a hotspot difference, and it applies to any thin or small model in the range.

If you’re on a model that is eSIM-only, there is one genuine difference worth knowing about, and we cover it separately in iPhone Air hotspot problems.

Does the iPhone 18 fix the hotspot dropping problem?

No. And it’s worth being precise about why, because people ask this with every new model.

The dropping problem, where your laptop loses the connection within seconds of the iPhone screen turning off, is not a hardware limitation. It’s iOS power management: when the phone goes idle, iOS powers down the cellular radio to save battery, and every device tethered to the hotspot loses its network. That behavior has been consistent since iOS 14, across every iPhone model, every modem generation, and every carrier. A faster chip or a newer modem doesn’t change it, because the radio is being turned off on purpose by software.

We wrote the full technical breakdown in why your iPhone hotspot keeps disconnecting. The one reliable fix is the same on the iPhone 18 as on every model back to the iPhone 11: an app that uses the background location API to keep the cellular radio responsive. That’s what Hotspot Hero does, and because it relies on Core Location APIs Apple has kept stable for over a decade, a new phone model changes nothing about how it works. Install it on the new phone, tap Start, grant Location: Always, done.

Setting up your hotspot workflow on the new phone: a 5-minute checklist

If tethering matters to your daily work, run through this once on the new iPhone and you’re covered:

1. Confirm Personal Hotspot is available in Settings (not greyed out). If it is, fix that first with the steps above.
2. Set a memorable password in Settings → Personal Hotspot → Wi-Fi Password. The auto-generated one is secure but painful to type into a console or a colleague’s laptop.
3. Decide on Maximize Compatibility. Off for modern laptops (faster 5 GHz), on if you tether game consoles or older devices (2.4 GHz reach).
4. Reinstall Hotspot Hero from the App Store and grant Location: Always again. Permissions do not carry over from backup restores in a usable state for location-based apps; a fresh grant on the new device is the clean path.
5. Forget-and-rejoin the hotspot on your laptop, tablet, and console so they cache the new phone’s credentials.

After that, your tethering setup on the iPhone 18 is exactly as reliable as it was on your old phone, which, with the radio-sleep fix in place, means genuinely reliable.

Frequently asked questions

Is Personal Hotspot different on the iPhone 18?

No. The feature, the settings location, the five-device Wi-Fi limit, and the Bluetooth and USB options are the same as on previous models. Everyday use is identical to the iPhone 17 and earlier.

Why is my hotspot greyed out on my new iPhone 18?

Almost always a post-transfer carrier profile issue. The eSIM moved but the tethering entitlement hasn’t provisioned yet. Restart the phone, toggle the cellular line off and on, install any carrier settings update, and if it persists, ask your carrier to re-push tethering to the new device.

Does the iPhone 18 stop the hotspot from dropping when the screen locks?

No. The drop comes from iOS powering down the cellular radio when the phone is idle, which is software behavior unchanged across models and iOS versions since iOS 14. The reliable fix is an app like Hotspot Hero that keeps the radio responsive through background location updates, and it works the same on the iPhone 18.

Do I need to set up Hotspot Hero again on my new iPhone?

Yes, do a fresh install and grant Location: Always on the new device. Location permissions restored from backup are not dependable; a clean grant takes ten seconds and guarantees the wake mechanism runs properly.

Why won’t my laptop connect to my new iPhone’s hotspot?

The laptop has the old phone’s network cached, and the new phone generated a new hotspot password during setup. Forget the saved network on the laptop and rejoin with the password shown in Settings → Personal Hotspot on the new phone.

Is hotspot different on the iPhone 18 Pro or Pro Max?

No. The Pro models change camera, display and chip, none of which affect tethering. The five-device limit, the settings screen, the Maximize Compatibility toggle and the idle disconnection behave identically across the whole lineup. A bigger model will last longer while sharing a connection because it has more battery, but the feature itself is the same.

Will my hotspot be faster on the iPhone 18?

Raw speed depends mostly on your cellular signal and your carrier plan, not the phone model. A newer modem can help at the margins in weak-signal areas, but if your hotspot felt slow before, the cause is usually signal, congestion, or carrier throttling rather than the handset. Our data usage calculator helps you check whether you’re hitting your plan’s hotspot cap, which is the most common hidden cause of sudden slowdowns.

The bottom line

The iPhone 18 changes nothing fundamental about Personal Hotspot: same setup, same limits, same idle-drop behavior. What a new phone does bring is transfer friction, and that’s fixable in minutes with a restart, a line toggle, and a forget-and-rejoin on your devices. If the dropping problem is what you were hoping the new hardware would solve, the fix is the same one it’s always been: Hotspot Hero, reinstalled fresh on the new phone.