Why can't my phone see a Wi-Fi hotspot from another phone?

It's a common occurrence when you've turned on your mobile internet and are sharing it, but the other device simply can't detect the network. This can happen at the most inopportune moment, when you urgently need to transfer a file or access a work chat. More often than not, the problem isn't a hardware failure, but rather a simple mismatch in security settings or frequency bands.

Modern smartphones are equipped with complex power-saving algorithms and communication modules that sometimes conflict with each other. If your The phone doesn't see the access point.If you're experiencing a connection created by another device, there's no need to panic. In most cases, checking a few settings in the settings menu is enough to restore the connection. Let's look at the main causes and how to fix them.

One of the most common reasons why devices can't find each other is because they operate on different frequency bands. Older or budget smartphone models often only support the standard 2.4 GHz, while the new flagships by default create a network in the range 5 GHz to ensure high speed. If the receiving device doesn't have a 5G module, it physically won't be able to detect the signal.

To resolve this issue, you need to manually change the access point settings on the transmitting device. Go to the mobile hotspot settings and find the frequency range option. It's usually labeled "AP Band" or "Band." Change the setting from "Prefer 5 GHz" to "2.4 GHz." This will make the network visible to a wider range of devices.

Another important aspect is the security standard. If the distributing device has a protocol installed WPA3, and the receiving device doesn't support it (which is typical for 2018-2019 models), the network won't be displayed. Change the security type to WPA2 PSK in the access point settings.

Sometimes users hide their network without realizing the consequences. The "Hidden Network" feature (SSID) stops broadcasting the access point's name. To connect to such a network, you must manually enter its name and password on the receiving device, as it simply won't appear in the list of available connections.

Check to see if this option is accidentally enabled. Go to your hotspot settings and make sure "Hide device" or "Hide network name" is unchecked. If you really need a hidden network for privacy reasons, remember that you'll have to enter your details manually each time you connect.

• 📱 Make sure the network name (SSID) does not contain special characters or emoji that may not display correctly on other operating systems.
• 🔋 Check your battery level: if the battery is low, the system may limit the power of the Wi-Fi module.
• 📡 Restart both devices - this clears temporary network driver errors.

Software glitches should also be considered. The service responsible for internet sharing may freeze in the background. A simple reboot of the smartphone often resolves the issue when the phone stops detecting the access point. It's also worth checking whether the device has an overly aggressive power-saving mode that disables the Wi-Fi module immediately after the screen turns off.

In some cases, the problem stems from an overflowing network settings cache. If you recently updated your firmware or changed your SIM card, configuration conflicts may have occurred. Clearing your network settings to factory defaults (and then entering your Wi-Fi passwords) can help resolve deep-seated software errors.

The operating system plays a key role in the network discovery process. Android And iOS have different algorithms for working with hotspots. For example, the iPhone, by default, does not allow devices to connect unless they are signed in to iCloud or Bluetooth is enabled for the initial handshake (the Instant Hotspot feature).

If you're trying to connect an Android device to an iPhone, make sure Bluetooth is enabled on both devices and you're signed in to the same Apple ID (for native integration) or simply use the standard WPA2 password. For Android-to-Android connections, make sure "Contacts Only" mode isn't enabled if you're using ecosystem data transfer features.

There's also the issue of the number of connected clients. Many carriers and phone settings limit the number of devices that can simultaneously access the internet. If the limit (usually 5-10 devices) is reached, new devices simply won't see the network or won't be able to connect.

⚠️ Please note: Some mobile carrier plans may block or limit tethering. If your hotspot turns on and then immediately turns off, check your plan's terms.

Below is a table to help you quickly determine device compatibility based on year of manufacture and supported standards.

If standard methods don't help, it's worth checking your APN settings. These are the access points through which your phone receives internet from your operator. If your APN settings restrict the connection type (for example, only default,supl without dun), Internet distribution will not work.

To check, go to your mobile network settings, select your SIM card, and find the "Access Point Names (APN)" option. Open the active profile. The "APN Type" field should say default,supl,dunIf there is only default, add ,dun at the end of the line (without spaces) and save the settings. Afterwards, be sure to reconnect your mobile data.

Sometimes the culprit is the antivirus or firewall installed on the receiving device. These programs can block incoming connections, considering them potentially dangerous, especially if the network is identified as "Public." Try temporarily disabling the protection or changing the network profile to "Private."

Physical distance and interference should also be considered. Walls, microwaves, and Bluetooth headsets can create noise that can drown out a weak access point signal. Move closer to the signal source and turn off any unnecessary wireless devices to test.

Why does resetting network settings help?

A reset deletes all saved Wi-Fi passwords, Bluetooth, and cellular network settings. This eliminates configuration file conflicts that may have been damaged during a system update or power outage.

In rare cases, the problem may be hardware-related. If the phone overheats significantly, the Wi-Fi module may reduce power or shut down to protect components. Allow the device to cool and try again. Also, oxidation of the antenna contacts after a fall or exposure to moisture can cause unstable operation.

If none of these methods help, it might be a problem with your operating system version. Outdated software may contain bugs that prevent the hotspot from working properly. Check for updates in the section Settings → System → Software Update.

Why does the access point turn off by itself after a few minutes?

This is a standard power-saving behavior. If no one is connected to the hotspot for a certain amount of time (usually 1-10 minutes), the phone turns it off. You can change the timer in the hotspot's advanced settings by finding the "Timeout" or "Turn off if no connections" option.

Is it possible to share Wi-Fi if there is no SIM card on the phone?

No, you need an active SIM card with a data plan to share your mobile data. However, if your phone is connected to a Wi-Fi network, some models (mostly rooted Android models or special apps) can rebroadcast the signal, but this isn't possible with standard iOS and Android tools.

Does low battery affect access point visibility?

Yes, when the battery level reaches a critical level (usually below 15-10%), the system may forcibly disable the access point or reduce the transmitter power, making the network invisible from a distance. Connect the device to a charger.

What should I do if the 4G icon is on, but the internet isn't working?

Check your balance and whether you have any data plan data. Also, make sure "Data Transfer" is enabled in your mobile network settings. Sometimes switching the network mode (for example, from 4G/3G/2G Auto to "4G Only") can help.