Many users are familiar with the situation where your device successfully passes the password verification but then gets stuck at the "Obtaining IP Address" stage. Your smartphone or laptop screen may remain stuck in this state forever, never providing internet access. This indicates that DHCP protocol, which is responsible for automatic address distribution, did not receive a response from your router or cannot negotiate with it.
Unlike a simple password error, the problem here lies deeper in network settings or a hardware conflict. The router may be overloaded with requests, have an overflowing address pool, or simply freeze while attempting to connect. Android, iOS And Windows People react to this failure in different ways, but the root of the problem most often lies in the wireless network configuration.
Sometimes the cause is as simple as a temporary glitch in the device's network card or router. However, if rebooting doesn't help, more complex diagnostics are needed. In this article, we'll take a detailed look at why the system can't obtain an IP address automatically and how to force the device to connect to the network by changing static settings or reconfiguring the router itself.
Reasons for failure to obtain network ID
The main reason is that your device (the client) sends a broadcast request to find a DHCP server but receives no response. The router, acting as the server, may be ignoring the request due to a software error or a full list of connected clients. DHCP pool limit — a common problem in offices or apartment buildings where the number of devices exceeds the number of available addresses in the router settings.
Another factor is IP address conflicts, when two devices on the same network attempt to use the same address. Software glitches in the network card drivers of your smartphone or laptop should also be considered. If the driver is outdated or malfunctioning, it may not generate request packets correctly.
- 📡 Address pool overflow: The router has distributed all available numbers (for example, from 100 to 150) and new devices are ignored.
- 🔒 MAC address filtering: The router's security settings prohibit connection for a specific device, even if the password is correct.
- 🔄 Unstable signal: When the signal level is very weak, data packets are lost and the handshake with the server is not completed.
⚠️ Note: If the problem occurs only on one specific device, while the others are working fine, look for the cause in the settings of the device itself, not the router.
It is important to understand the difference between static and dynamic address allocation. In a home network, the dynamic method is typically used (DHCP), but if it's blocked by an antivirus or a system failure, connecting will be impossible. Sometimes, antivirus software on a PC can block incoming DHCP responses, considering them suspicious activity.
Diagnosis and initial actions
Before delving into complex settings, it's important to perform basic diagnostics. Often, the problem can be resolved by simply rebooting the router, which clears the router's memory buffer and resets frozen processes. Unplug the router from the power outlet for 10-15 seconds, then plug it back in and wait for it to fully boot up (usually 1-2 minutes).
If rebooting doesn't help, try "Forget Network" on your device. This deletes the saved connection profile, including any cached IP or DNS settings that may have been incorrect. After deleting the profile, scan for networks again and enter the password.
Check if the DHCP server is running on your router. To do this, log into the control panel (usually at 192.168.0.1 or 192.168.1.1) and find the section LAN or DHCP ServerMake sure this feature is enabled. If it's disabled, no device will be able to obtain an address automatically.
☑️ Primary diagnostics
Setting up a static IP address on Android and iOS
If automatic address acquisition doesn't work, the most effective way to get around the error is to manually enter the parameters. This eliminates the dependence on the DHCP server. Android When connected to Wi-Fi, click on the network name or gear, select "More" or "Advanced settings" and toggle the IP settings DHCP on Static.
You'll need to enter the information manually. Typically, this is the gateway address (your router) and the device's IP address. For most home networks, the gateway looks like this: 192.168.1.1 or 192.168.0.1The device address must differ from the router address only by the last digit, for example, 192.168.1.55.
| Parameter | Value for routers 192.168.1.1 | Value for routers 192.168.0.1 | Description |
|---|---|---|---|
| IP address | 192.168.1.50 | 192.168.0.50 | Your device's unique number |
| Gateway (Router) | 192.168.1.1 | 192.168.0.1 | Access point address |
| Prefix length | 24 | 24 | Specifies the subnet mask |
| DNS 1 | 8.8.8.8 | 8.8.8.8 | Google Server (Primary) |
On devices iOS (iPhone, iPad) The procedure is similar. Tap the blue "i" icon next to the network name, scroll down to the "IP Setup" section, and select "Manual." Enter the same information as for Android. After saving the settings, your phone should connect instantly, bypassing the address request.
⚠️ Important: When setting up manually, make sure that the IP address you select (the last digit) is not already occupied by another device on the network, otherwise a conflict will occur and no one will have internet access.
Advanced DHCP settings on a router
If the problem is widespread and affects all devices in the house, you need to change the router settings. Go to the web interface and find the section DHCP ServerPay attention to the address range (Start IP and End IP). By default, it's often narrow, for example, from 100 to 150, which only allows 50 slots.
Increase this range. Set address 192.168.1.2, and the final 192.168.1.254This will allow you to connect up to 250 devices simultaneously. Also, check the "Lease Time" parameter. If it's set too high (for example, 2880 minutes), devices may hold addresses for a long time even after they've left the network, blocking space for new ones.
Reduce the lease time to a reasonable value, such as 120 minutes (2 hours). This will force devices to renew their leases more frequently, freeing up addresses for devices that are far from the router or turned off. Don't forget to save the settings by clicking the Save button. Save or Apply.
What is an address pool?
An address pool is a list of available numbers that the router can assign to connected devices. If there are 10 numbers in the pool, and the 11th device tries to connect, it will get stuck at the IP address acquisition stage because there are simply no available numbers left.
Some router models, especially older ones, may experience a memory leak, causing the DHCP table to become overflowing with "dead" entries. In this case, the only solution is to periodically reboot the device or update it to the latest firmware version from the manufacturer's website.
Resetting network settings and working with drivers
On computers running Windows The problem is often resolved by resetting the TCP/IP stack. Open the command prompt as administrator and enter the command netsh int ip reset, then netsh winsock resetAfter executing the commands, be sure to restart your computer.
For mobile devices, there's a "Reset Network Settings" feature. It doesn't delete your photos or contacts, but it does erase all saved Wi-Fi passwords, Bluetooth, and cellular network settings. On Android, it's in the menu. Settings → System → Reset settings → Reset Wi-Fi, mobile networks, and Bluetooth.
- 💻 Updating drivers: Download the latest driver for your wireless adapter from your laptop manufacturer's official website.
- 🛡️ Antivirus: Temporarily disable any third-party firewall or antivirus software, as they may be blocking DHCP requests.
- 📶 Opening hours: try changing the wireless mode in your router 802.11 b/g/n/ac mixed or only n/g, if the device is old.
If you have a static IP address on your computer (in the adapter properties), but the router assigns addresses in a different range, you won't be able to connect. Make sure that in the protocol properties IPv4 The "Obtain an IP address automatically" box is checked unless you are using the manual setup described above.
⚠️ Note: Router interfaces and smartphone menus may differ depending on the model and operating system version. Look for similar items if the exact names don't match.
Frequently Asked Questions (FAQ)
Why does the laptop connect, but the phone says "Obtaining IP"?
Most likely, your router has MAC address filtering enabled, and your phone's address is blacklisted, or an address has been reserved for it that conflicts with the current network. It's also possible that the phone's date and time settings are incorrect, interfering with the handshake process.
Can a virus block the receipt of an IP address?
Yes, some types of malware can change network card settings or block the DHCP client. Scan your device with an antivirus and reset the network settings to factory defaults.
What if a static IP doesn't help either?
Try changing the wireless channel on your router (for example, from Auto to 1, 6, or 11). It's possible that excessive noise in the air is interfering with service packets. Also, check if there's a limit on the number of connected clients in your router settings.
Does password length affect IP address acquisition?
The password itself has no effect if it is entered correctly. However, if complex security is used WPA3 On an older device, compatibility errors may occur, manifesting themselves as a persistent "Obtaining IP" error. Try temporarily lowering the security level to WPA2-PSK.