It's frustrating when a smartphone endlessly gets stuck on the "Obtaining IP address" status, or, even worse, flatly states "Incorrect password" despite you entering it correctly. This is a classic synchronization failure between the client and the access point, which can be anything from a simple software error to a serious network settings conflict. Often, the problem lies not with the password itself, but with how the device processes authentication data.
In this article, we'll take a detailed look at the connection mechanics, eliminate human error, and delve into the in-depth settings of your router and mobile device. You'll learn why. security protocols WPA2 and WPA3 can conflict with older phone drivers, and a forced reset of network settings solves 90% of such issues. We won't waste time on obvious advice like "check if Wi-Fi is enabled" and will get straight to the point.
Before panicking and taking your router in for repair, it's important to isolate the source of the error. Is the problem isolated to one device, or is the entire network down? This determines your next steps. Understanding the nature of the failure is half the battle in restoring the connection.
Hidden input errors and keyboard layout
Even experienced users often underestimate the impact character register and the active keyboard layout affect the authorization process. Smartphones have autocorrect, which can seamlessly replace characters you enter with similar ones or add spaces at the beginning and end of a line. Wi-Fi security is sensitive to every character: an uppercase "A" and a lowercase "a" are two completely different encryption keys.
You can visually check the entered password by clicking the eye icon in the input field, but this doesn't always reveal hidden spaces. If you're copying a password from notes or a messenger, make sure there's no extra line feed character in the clipboard. This invisible "tail" is often what causes the router to reject the connection.
⚠️ Attention: Some models Android And iOS When you re-enter your password after an error, they may automatically substitute a previously saved but incorrect key from the system cache, ignoring your new attempts.
To rule this out, try deleting the network entirely on your phone. To do this, go to Wi-Fi settings, select your network, and tap "Forget Network" or "Delete." Then, find the access point again and enter the password manually, paying close attention to each character. Make sure Caps Lock is off on your keyboard and the correct language bar is selected.
IP addressing conflicts and DHCP failures
One of the most common technical reasons why a phone cannot connect is an error in the receiving process. IP addressesWhen you enter the correct password, the router allows the device to connect to the network, but then the DHCP server takes over, assigning a unique address. If the address pool is exhausted or a conflict occurs (two devices are attempting to use the same IP address), the connection will hang at the "Obtaining IP Address" stage.
In such cases, manually entering a static IP address directly in your phone's settings can help. You'll need to know the gateway address (usually 192.168.0.1 or 192.168.1.1). Go to the advanced settings of your Wi-Fi network on your smartphone, find "IP Settings," and switch from DHCP on Static.
In the fields that appear, enter an address that differs from the router's address only by the last digit (for example, if the router is 192.168.1.1, enter 192.168.1.150 for the phone). Leave the subnet mask at the default (255.255.255.0), and in the DNS field, you can enter Google's servers: 8.8.8.8. This often bypasses router software errors during automatic address allocation.
☑️ IP Conflict Diagnostics
It's also worth paying attention to the frequency range. If the router broadcasts a network on both 2.4 GHz and 5 GHz with the same name (SSID), the phone may attempt to connect to the congested 2.4 GHz band while 5 GHz is free. In this case, it's best to temporarily separate the network names in the router settings or force the frequency selection in the phone settings, if this option is available.
Issues with compatibility of encryption protocols
Modern security standards are constantly evolving, and the implementation of a new protocol WPA3 This created a number of problems for older-generation devices. If your router is configured to operate exclusively in WPA3 mode, and your phone is a few years old and only supports WPA2, they simply won't understand each other. To the phone, this will appear as a persistent connection failure, even if the password is entered perfectly.
The solution lies in the router's wireless settings. You need to log into the control panel (usually through a browser at 192.168.0.1) and find the wireless security section. There, change the security mode from "WPA3 Only" to "WPA2/WPA3 Mixed" or temporarily leave it at "WPA2 Personal (AES)."
| Protocol | Compatibility | Security | Recommendation |
|---|---|---|---|
| WEP | All devices | Critically low | Do not use |
| WPA/TKIP | Old gadgets | Low | Avoid |
| WPA2/AES | Universal | High | The optimal choice |
| WPA3 | New devices | Maximum | For new routers |
Additionally, some routers have a "Quick Setup" or WPS feature, which can interfere with manual password entry on certain smartphone models. Try temporarily disabling WPS in the router interface. This will prevent automatic but erroneous handshake protocols from occurring between devices.
Why does WPA3 break the connection?
The WPA3 protocol uses a new handshake method, SAE (Simultaneous Authentication of Equals), which replaces the older PSK. Older Wi-Fi drivers in phones simply cannot handle these data packets and terminate the connection, considering it insecure or invalid.
ARP table overflow and router limits
Home routers, especially budget models, have limited RAM resources. They have a table ARP (Address Resolution Protocol), which stores the mappings between the IP and MAC addresses of connected devices. If many devices (smart bulbs, phones, TVs, laptops) are connected to the network, this table can become overflowing. As a result, a new device (your phone) physically cannot be added to the routing table.
A symptom of this problem is that the phone connects for a couple of seconds, obtains an IP address, but the internet doesn't work, or the connection cycle repeats endlessly. In this case, the best solution is to reboot the router by completely disconnecting the power for 10-15 seconds. This will clear the RAM and reset the ARP table.
⚠️ Attention: If you have more than 15-20 smart devices in your home, a standard home router may not be able to handle the number of simultaneous connections. In this case, consider purchasing equipment that supports more clients or setting up a guest network for IoT devices.
Also check if MAC address filtering is enabled on your router. If this feature is enabled, even with the correct password, your phone won't connect unless its unique identifier (MAC address) is whitelisted. You can find your phone's MAC address in the "About Phone" -> "General Information" section or in the Wi-Fi connection status.
DNS failures and smartphone network settings
Sometimes the phone will formally connect to Wi-Fi, but the internet icon won't appear, or pages won't load, creating the illusion of an incorrect password upon repeated attempts. Often the culprit is DNS serversIf your provider blocks their DNS or it's unstable, your phone won't be able to resolve domain names.
Try changing your DNS to public and reliable servers, such as Google (8.8.8.8 and 8.8.4.4) or Cloudflare (1.1.1.1). This can be done in the same advanced Wi-Fi connection settings where you changed your IP to a static one. Enter the specified values in the "DNS 1" and "DNS 2" fields.
Another possible cause could be conflicting VPN applications or antivirus software with network protection features. They can intercept traffic and block connections if they deem the network unsafe. Try completely disabling or uninstalling VPN clients while troubleshooting.
Wi-Fi module hardware problems and drivers
A physical component can't be ruled out either. The Wi-Fi module in a phone is a complex electronic device that can fail or malfunction due to overheating or software driver glitches. If the phone was dropped or exposed to moisture, the antenna module could have become detached from the circuit board.
Driver software errors are often resolved by updating the operating system. Manufacturers regularly release patches that fix connection stability issues. Go to your system settings and check for updates. If updating doesn't help, you can try resetting your network settings, as mentioned above, but this is a drastic measure.
To diagnose the issue, you can connect your phone to another Wi-Fi network (for example, by sharing internet from another phone). If the connection fails there, the problem is definitely with your smartphone. If everything works on the other network, the conflict lies in the settings of your home router.
Why does the phone say "Saved" but won't connect?
The "Saved" status means the phone has saved the network settings, but the handshake failed. This could be due to a weak signal, causing data packets to be lost, or because the router is ignoring the device's requests, considering it "stuck" in its client table.
Can an antivirus on a router block a phone?
Yes, if your router has parental controls or content filtering enabled, and your phone has restrictions on access time or website categories, it may not be able to fully access the network, simulating a connection error.
Does date and time affect Wi-Fi connection?
Yes, it's critical. If the date on your phone or router is significantly off (for example, set to the year 2000), security certificates will be considered invalid, and a secure connection will not be established. Check if automatic time synchronization is enabled.