Every user is familiar with the situation when their smartphone suddenly stops detecting their home network or gets stuck on the "Obtaining IP Address" status forever. It's annoying, especially when you need to urgently resolve a work issue or finish watching a movie. More often than not, the problem isn't a hardware failure, but a software glitch or settings conflict, which can be easily resolved on your own.
In this article we will look at the main reasons why The phone won't connect to Wi-FiWe'll offer step-by-step solutions for Android and iOS. We'll cover everything from simple steps like rebooting to complex manipulations with MAC addresses and static IP addresses. Understanding the nature of the error will help you save time and avoid calling a service center for trivial issues.
Sometimes the culprit is the router itself, which has frozen or updated, changing security settings. In other cases, the problem occurs in the smartphone's operating system after an unsuccessful update. Diagnostics requires a sequential elimination of factors, starting from simple and moving to complex ones.
⚠️ Attention: If your phone stopped detecting Wi-Fi immediately after being drenched in water or receiving a strong impact, software fixes may not help. In such cases, there's a high risk of physical damage to the antenna module.
Basic diagnostics and reboot of devices
The first thing to do if you're experiencing connection issues is to perform a full reboot of both devices. Many users ignore this step, relying on the system's "smart" algorithms, but temporary files and cache can block the normal operation of network modules. Unplug the router for 10-15 seconds, then plug it back in and wait for the indicators to fully load.
At the same time, reboot your smartphone. Android This can be done through the power menu, and on iPhone — by holding down the lock and volume buttons. After turning on, try connecting again. Clearing the RAM and reinitializing the network drivers often resolves the issue.
☑️ Primary diagnostic checklist
If a simple reboot doesn't help, check if other devices can see the network. If your laptop or tablet connects without problems, the issue is with your phone. If the network is unavailable anywhere, the problem lies with your ISP or router.
Problems with passwords and saved profiles
One of the most common causes of connection errors is an incorrect password or a conflict with saved data. The operating system may have remembered old security settings that changed after the router was reconfigured. In this case, the phone attempts to log in with outdated data and is denied.
To fix this, you need to "forget" the network. Go to Wi-Fi settings, select your network, and press Delete or Forget the networkAfter this, re-enter the password, carefully checking the letter case and symbols. Make sure that the password is not enabled on the keyboard. Caps Lock and the correct input language is selected.
- 🔑 The error often occurs if the password contains special characters that the phone interprets differently than the computer.
- 📱 On your iPhone, try toggling the "Private Wi-Fi Address" switch in the specific network's settings if the connection is blocked.
- 🔄 After deleting the network profile, be sure to turn the Wi-Fi module off and on again.
Sometimes the phone connects, but there's no internet, displaying the message "Connected, no internet access." This may mean the router hasn't received an external IP address from the provider, even if authentication within the local network was successful.
Why does the phone say "Saved" but won't connect?
This status means that the device has successfully exchanged a handshake with the router but is unable to obtain an IP address or DNS. This is often caused by a full DHCP table on the router or a static IP conflicting with another device.
IP addressing and DNS errors
If your phone is endlessly trying to obtain an IP address, it means the DHCP (automatic address assignment) process is broken. The router may not respond to the phone's requests, or the address pool may be exhausted. In this case, manually assigning a static IP address can help, forcing the phone to ignore requests to the DHCP server.
To do this, in the Wi-Fi network settings (section "Advanced" or "IP Settings"), change the method from DHCP on StaticYou'll need to enter the gateway address (usually 192.168.0.1 or 192.168.1.1) and DNS servers. Using Google's public DNS (8.8.8.8) often solves issues with slow page loading.
| Parameter | Value for setting | Note |
|---|---|---|
| IP address | 192.168.1.128 | The last digits can be any number from 2 to 254 |
| Gateway (Router) | 192.168.1.1 | Depends on the router model (TP-Link, Asus, Keenetic) |
| DNS 1 | 8.8.8.8 | Google server |
| DNS 2 | 77.88.8.8 | Yandex server |
After saving the settings, your phone should immediately access the network. If this doesn't help, your router may have MAC address filtering enabled, which we'll discuss below. It's also worth checking if there's a limit on the number of connected devices.
⚠️ Attention: When manually setting up an IP address, make sure you do not select an address that is already taken by another device on the network (such as a printer or TV), otherwise an address conflict will occur.
MAC Address Filtering and Security
Modern routers have a "Whitelist" feature or MAC address filtering. If this feature is enabled, even with the correct password, a new device will not be able to connect until its unique identifier is added to the router settings.
A MAC address is the physical address of a network card and appears as a set of characters (e.g. A4:5E:60:C2:11:00). You can find it in the "About phone" section or under "About Wi-Fi network." To allow the connection, you need to access the router's web interface through the browser of any other connected device.
In the router interface (section Wireless -> MAC Filtering) Add your phone's address to the list of allowed addresses. Modern smartphones also use MAC address randomization to protect privacy. This can confuse your router's security system.
- 📡 On Android 10+ and iOS 14+, a random MAC address is enabled for each network by default.
- 🛡️ If your router is old, it may not work correctly with randomized addresses.
- ✅ Try selecting "Use device MAC address" in your phone's Wi-Fi settings instead of a random one.
Disabling randomization can help if the router is configured strictly and does not accept floating identifiers. This is especially true for corporate networks or older router models.
2.4 GHz and 5 GHz frequency bands
Dual-band routers broadcast two networks: 2.4 GHz And 5 GHzOlder phones may simply not see the 5 GHz network because their hardware doesn't support it. Conversely, newer smartphones may prioritize 5 GHz, ignoring 2.4 GHz, even if the latter's signal is stronger.
The channel width may also be the issue. If your router is set to 40 MHz or 80 MHz in a noisy environment, your phone may lose connection. Try forcing your router to use a 20 MHz channel for the 2.4 GHz band.
Additionally, some phones don't work well with certain channels (especially 12 and 13 in some regions). If your phone sees the network but won't connect, try changing the broadcast channel to a fixed one (e.g., 1, 6, or 11) in your router settings, disabling "Auto" mode.
If your phone only supports 2.4 GHz and your router has combined networks under one name (Smart Connect), try separating them by giving them different names (SSIDs), for example, HomeWiFi And HomeWiFi_5GThis will allow you to force your phone to connect to the desired frequency.
Resetting network settings and drastic measures
When all else fails, resetting your network settings is the only option. This will delete all saved Wi-Fi passwords, Bluetooth, and mobile network settings, returning them to factory defaults. This is a safe operation that won't affect your personal files, photos, or contacts.
On Android the path usually looks like this: Settings → System → Reset settings → Reset Wi-Fi, mobile data, and Bluetooth settingsOn iPhone: Settings → General → Transfer or reset iPhone → Reset → Reset Network Settings.
After rebooting, your phone will be as good as new in terms of connections. You'll need to re-enter your home network password. This method is effective in 90% of cases where the issue is caused by software glitches.
⚠️ Attention: Menu interfaces may vary depending on the OS version and shell (MIUI, OneUI, EMUI). If you can't find the reset option, search for "Reset" in the settings.
Frequently Asked Questions (FAQ)
Why does my phone connect to Wi-Fi, but the internet doesn't work?
Most often, this is a DNS issue or a lack of access to the external network from the router itself. Check if the WAN indicator on the router is lit, and try entering a static DNS (8.8.8.8) in your phone's settings.
Can a phone case block Wi-Fi?
Yes, if the case has a metal base or inserts. Metal shields the signal, significantly reducing the quality of the smartphone's antenna reception. Remove the case and check the connection.
Why does my iPhone say "Incorrect Password" even though I'm sure it's correct?
It's possible that the router's encryption type has changed (for example, from WPA2 to WPA3), which your iPhone doesn't yet support, or MAC address filtering is enabled. Try forgetting the network and reconnecting.
Does date and time affect Wi-Fi connection?
Yes, if the date on your phone is significantly off (for example, if it's set to 2010), security certificates may be considered invalid, and the system will block connections to secure networks.