Turning your smartphone into a fully-fledged portable router is one of the most sought-after features in modern mobile devices. Owners of Apple's flagship lineup often wonder how to activate this feature on their devices. iPhone 15, given the transition to a new interface standard and updated iOS operating algorithms. Unlike previous models, this one has its own nuances related to power saving management and connection type.
Activating tethering mode instantly provides internet access to nearby laptops, tablets, or other phones. This is critical on business trips, in cafes, or in places where wired internet is unavailable or unsafe. However, despite the simple interface, users sometimes encounter the activation button simply missing or inactive.
In this article, we'll cover not only the standard connection setup procedure but also advanced settings that will help stabilize your connection. You'll learn how to properly configure a network name for security, which parameters affect data transfer speeds, and why. mobile Internet may not work even with the feature enabled. We'll look into the technical aspects of the feature. iOS 17 and newer in the context of traffic distribution.
⚠️ Attention: The cellular settings interface may vary slightly depending on your carrier version and region. If you don't see any options, check your carrier profile to make sure your settings are up-to-date.
Basic access point setup via the settings menu
To get started, you need to go to the appropriate section of the system settings. Unlike older versions of the system, where the menu could be hidden, in iPhone 15 The path to this feature has become more logical, although it still requires some attention. First, make sure your SIM card is installed correctly and your data plan supports data services.
Go to the main menu and select the item Settings. Here you are interested in the section Cellular communications (or "Mobile Data"). This menu contains the toggle switch for signal broadcasting. If you use two SIM cards (a physical one and an eSIM), be sure to select the one you want to use for data.
Find the line Modem modeIf you see it right away, tap it. If the option isn't on the first screen, look for it in the "Cellular Data Network" subsection. Inside, you'll see a toggle Allow othersTurn it on. The system may ask for confirmation or prompt you to enable Bluetooth and Wi-Fi for better compatibility.
- 📱 Make sure the "Allow others" slider is green.
- 📶 Check for an antenna icon or a blue indicator in the upper left corner of the screen (or in the "Dynamic Island").
- 🔐 Set a strong password of at least 8 characters to prevent unauthorized access.
After switching on iPhone 15 will start broadcasting a signal. Other devices will be able to find your network by its name, which by default is "iPhone (Owner)". To change the name, go to Main → About → NameThis is an important step for security, as a standard name can give away your location or identity in public places.
Quick activation via Control Center
For those who need to quickly share internet, there is a more efficient method that does not require deep menu exploration. Control center (Control Center) allows you to control basic communication functions with a swipe. On models without a physical Home button, which includes iPhone 15, accessed by swiping down from the upper right corner of the screen.
In the panel that opens, you'll see a group of icons in the upper left corner. This includes symbols for Airplane Mode, Wi-Fi, Bluetooth, and Cellular. If you long-press the Cellular icon (or group of icons), an expanded menu will open. A button will be available here. Modem mode.
Clicking this button instantly activates or deactivates hotspot sharing. This is especially convenient when you need to quickly grant access to a guest or temporarily disable data transfer to save battery. However, keep in mind that you can't change the password or network name through this interface—you'll still need to access the full path through Settings to do so.
It's important to note that the status visualization in the Control Center may change. If the seed is active, the icon may glow green or blue, indicating that iPhone Ready to receive connections. If the icon is gray, the feature is disabled.
Setting up security and network name
Security is a priority when using Wi-Fi networks. When you share the internet, your phone becomes a gateway, and outsiders can connect to it if proper barriers aren't in place. WPA2/WPA3 encryption protocol, used by default in iPhone 15, provides reliable protection of transmitted data.
A password is your first and foremost line of defense. Avoid using simple combinations like "12345678" or your date of birth. It's best to generate a random set of characters using a password manager or the system's built-in password generator. You can change it in the menu. Settings → Cellular → Personal Hotspot → Wi-Fi Password.
It's also worth paying attention to the device name. As mentioned earlier, the standard name "iPhone" is ubiquitous. The list of available networks at a cafe or office might include dozens of such devices. To avoid confusing your device and connecting to someone else's iPhone by mistake, create a unique name.
| Parameter | Recommendation | Where to change |
|---|---|---|
| Network name (SSID) | Unique, no personal data | Main → About → Name |
| Encryption type | WPA3 Personal (automatic) | Does not change (system) |
| Password | Minimum 12 characters, letters and numbers | Tethering → Wi-Fi Password |
| Visibility | Hide when not connected | Automatically (after 90 sec) |
System iOS Automatically hides the hotspot to save power if no one is connected for 90 seconds. This is normal behavior, but it sometimes confuses users. To make the network visible again, simply unlock the phone and open the tethering settings.
Sharing the Internet via USB and Bluetooth
While Wi-Fi is the most popular method of sharing, it is not always ideal. A wired connection via USB cable (in case iPhone 15 This USB-C cable provides more stable speeds while simultaneously charging your phone. It's the best choice for working with large files or video conferencing on a laptop.
To connect via cable, follow these steps:
1. Connect iPhone 15 to the computer with a USB-C cable.
2. If the phone screen asks "Trust this computer?", tap "Trust" and enter the unlock password.
3. A new device will appear in your network connections on your computer (Windows or macOS) and will use your smartphone's Internet connection.
Bluetooth is less commonly used due to its low data transfer speed, but it can be useful in situations where the receiving device's Wi-Fi module is faulty or when minimal power consumption is required. The speed is limited by the Bluetooth protocol, so this method is not suitable for viewing 4K video.
⚠️ Attention: When connecting via USB on Windows, you may need to install Apple Mobile Device Support drivers, which are usually installed with iTunes or the Apple Devices app.
Why is a USB modem faster than Wi-Fi?
A cable connection ensures direct data transmission without loss over the radio channel, eliminates interference from other networks, and guarantees minimal ping, which is critical for online gaming and VoIP telephony.
Switching between modes occurs automatically depending on the connection type. If a cable is connected, it takes priority. If the cable is disconnected but Bluetooth and Wi-Fi are enabled, the system will use wireless protocols based on the settings on the receiving device.
Troubleshooting: Tethering not working
It's not uncommon for the feature to be enabled, but other devices can't see the network or connect. Most often, the problem lies in the cellular network settings or a temporary software glitch. First, try turning it on and off. Airplane mode - this will restart all radio modules of the phone.
If this doesn't help, check your APN (Access Point Name) settings. In rare cases, operators may not automatically apply the correct settings. Here's how to check: Settings → Cellular → Cellular Data Network → Personal HotspotYour carrier's information should be entered here. If the fields are empty, contact your carrier's support or reset your network settings.
Another possible cause could be traffic throttling. Some tariff plans have tethering limits, even if the basic plan is unlimited. Your carrier may block your connection or reduce your speed to a minimum. Check your tariff's terms in your personal account.
- 🔄 Reset network settings:
Settings → General → Transfer or reset iPhone → Reset → Reset Network Settings. - 📡 Make sure you have 4G/5G coverage; EDGE data sharing may not work reliably.
- 🔋 Check if you have power saving mode enabled, which may limit background activity.
It's also worth making sure that the receiving device (e.g., a laptop) doesn't have a static IP address that conflicts with the range assigned by the iPhone. In most cases, switching to automatic IP acquisition (DHCP) helps.
Optimizing speed and power consumption
Internet distribution is an energy-intensive process. iPhone 15 The phone has a powerful battery, but active radio operation in hotspot mode can quickly drain the battery, especially if the cellular signal is weak. In poor reception conditions, the phone increases its transmit power, which leads to heating of the casing.
For optimal performance, use the 5 GHz band if your devices support this standard. Dual-band mode Allows you to choose between compatibility (2.4 GHz) and speed (5 GHz). The "Maximum Compatibility" switch in the modem settings is responsible for this: if it's off, the network will operate at 5 GHz (faster), and if it's on, at 2.4 GHz (longer range).
☑️ Distribution optimization
Avoid leaving your phone in direct sunlight or on a soft surface (such as a sofa or pillow) while actively sharing data. Overheating can cause throttling (reduced processor performance) and temporary modem shutdown to protect components. Use a stand or place the device on a hard surface.
Frequently Asked Questions (FAQ)
Why does the "Modem Mode" option disappear from the settings?
This could be due to a carrier profile error or a missing SIM card. Try removing and reinserting the SIM card, updating your carrier settings (Settings → General → About → Update settings), or resetting your network settings.
Is it possible to share Wi-Fi if there is no SIM card on the iPhone?
No, tethering requires an active internet source, which is the SIM card's mobile network. However, if the iPhone is connected to Wi-Fi, it cannot broadcast the same Wi-Fi signal further (the repeater feature in iOS is not implemented natively for iPhone, unlike some Android smartphones).
How many devices can connect to iPhone 15 at the same time?
Technically iPhone 15 Supports connection of up to 5 devices simultaneously via Wi-Fi. When connecting via USB, the number is limited by the ports and capabilities of the hub, while via Bluetooth, the number is typically limited to one device.
Does tethering affect mobile connection speed?
Yes, the channel's bandwidth is divided among all connected devices. If several laptops connect to the access point, downloading updates, or watching videos, the speed on each device will decrease, and the ping will increase.