Tablet not receiving an IP address via Wi-Fi: causes and how to fix

Are you connecting your tablet to your home or office Wi-Fi network, but instead of internet access, you see the message "Obtaining IP address" that either stays on forever or returns an error? This problem is familiar to many users. Android And iOS-devices. In 80% of cases, it's not related to hardware failure, but to network settings, router settings, or the tablet itself. But how can you pinpoint the problem—and what can you do to restore a stable connection?

In this article we will look at all possible reasonsThere are several possible causes of a tablet's inability to obtain an IP address via Wi-Fi, ranging from the mundane (such as a malfunctioning DHCP server on the router) to the rare (such as a MAC address conflict or a device being blocked in the router settings). For each reason, we'll provide an explanation. step-by-step instructions We'll provide troubleshooting and diagnostic advice, as well as recommendations on how to avoid similar problems in the future. If you're not a technical expert, don't worry: all solutions are described in plain language, with illustrations and tips for beginners.

Before you start making any adjustments, please answer one question: does the problem occur? only on one tablet or on all devicesconnected to this network? This will help narrow down the possible causes.

📊 The IP address problem occurs on

Only on this tablet

On multiple devices

On all devices on the network

Don't know

1. Router DHCP server failure

The most common reason why a tablet cannot obtain an IP address is DHCP server is not working correctly On the router. This server automatically assigns IP addresses to all devices on the network. If it's frozen or incorrectly configured, devices either receive incorrect addresses or don't receive them at all.

How to check:

🔄 Reboot your routerUnplug it for 30 seconds, then plug it back in. This solves the problem in 60% of cases.
📱 Check if other devices (smartphone, laptop) are receiving IP addresses. If not, the problem is definitely with the router.
🖥️ Go to the router's web interface (usually at 192.168.0.1 or 192.168.1.1) and make sure DHCP is enabled. Path: LAN Settings → DHCP Server.

If DHCP is disabled or not working correctly:

Enable DHCP server (checkbox Enable DHCP Server).
Make sure that the range of addresses issued (for example, 192.168.0.100–192.168.0.199) does not overlap with the static IPs of other devices.
Save the settings and reboot the router.

⚠️ Attention: On some routers (for example, Zyxel Keenetic or ASUS RT-AX88U) After a firmware update, DHCP settings are reset. If the problem occurred after an upgrade, check your server settings.

2. Incorrect network settings on the tablet

Sometimes the problem isn't with the router, but with the tablet itself. For example, if you previously manually set a static IP or changed connection settings and are now trying to obtain an address automatically. Or if an incorrect proxy server is saved in the network settings.

How to reset network settings on Android:

Go to Settings → System → Reset → Reset Wi-Fi, mobile network, and Bluetooth settings.
Confirm the reset. All saved networks and passwords will be deleted.
Reconnect to Wi-Fi.

For iPad (iOS):

Open Settings → Wi-Fi.
Click on the "i" symbol next to the problematic network.
Select "Forget this network" and reconnect.

If resetting doesn't help, check:

🔧 Airplane mode. Make sure it is disabled.
📵 Energy savingSome tablets (eg. Samsung Galaxy Tab) in power saving mode, Wi-Fi operation is limited.
🔒 Proxy server. In the network settings (More → Proxy) should be set to "No" or "Auto".

☑️ Checking tablet settings

Disable airplane modeReset Wi-Fi settingsCheck proxy serverDisable power saving

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3. MAC address conflict or device blocking

Each device on the network has a unique MAC address — a kind of "passport" to the local network. Sometimes the router can block the tablet's connection due to:

🚫 MAC address filtering (in the router settings, access is allowed only to certain devices).
🔄 Conflict (two devices with the same MAC address - this happens when addresses are cloned).
🛡️ Blockages after unsuccessful connection attempts (some routers temporarily ban devices if an incorrect password is entered multiple times).

How to check and fix:

Find out the MAC address of your tablet:
- Android: Settings → About phone → General information → Wi-Fi MAC address.
- iOS: Settings → General → About → Wi-Fi Address.

Go to the router's web interface and check:

In the section Wireless Mode → MAC Filter Your address must not be blacklisted.
IN DHCP → Client List Check if your MAC is duplicated.
If your router is blocking your device, add its MAC address to the whitelist or disable filtering.

⚠️ Attention: On some routers (for example, TP-Link Archer) After updating the firmware, the lists of allowed MAC addresses are reset. If the problem appeared after the update, check this setting.

Cause	How does it manifest itself?	Solution
MAC filtering is enabled	The tablet does not connect, but other devices work.	Add the tablet's MAC address to the router's whitelist.
MAC address conflict	Periodic connection breaks, IP is not issued	Change your tablet's MAC address (requires root on Android)
Temporary blocking by router	After several unsuccessful connections	Reboot your router or wait 10-15 minutes

4. Problems with the router or tablet firmware

Outdated or faulty firmware can cause DHCP failures and conflicts with new Wi-Fi standards (Wi-Fi 6, Wi-Fi 6E) or simply "glitch." This applies to both routers and tablets.

Signs of firmware problems:

🐢 The tablet takes a long time to connect.
🔄 The IP address is assigned, but after a few minutes the connection is lost.
📱 The problem appeared after updating Android/iOS or router firmware.

What to do:

Update your router firmware:
- Download the latest version from the manufacturer's website (ASUS, TP-Link, MikroTik and others).
- Update via web interface (Administration → Firmware Update).

Rolling back the tablet firmware (if the problem appeared after an update):

On Android: Use recovery mode (Recovery Mode) for rollback.
On iPad: Connect to iTunes/Finder and restore via DFU mode.
Resetting the router to factory settings: If the update doesn't help, reset the router using the button Reset (hold for 10-15 seconds).

⚠️ Attention: On routers with alternative firmware (for example, DD-WRT or OpenWRT) DHCP failures are more common. If you're using custom firmware, try reverting to stock firmware.

How can I find out my router's current firmware?

Typically, the firmware version is indicated on the main page of the router's web interface (in the section Status or System). It can also be seen on the sticker on the bottom of the device (field Firmware Version or SW Version).

5. Interference or weak Wi-Fi signal

If the Wi-Fi signal is too weak or there is significant interference from other networks, the tablet may not be able to obtain an IP address due to constant connection interruptions. This is especially true for devices with older Wi-Fi modules (e.g., Samsung Galaxy Tab A 2016 or iPad Mini 2).

How to diagnose:

📶 Check your Wi-Fi signal strength in your settings. If it's below 2-3 bars, there's a coverage issue.
🔍 Use apps like Wi-Fi Analyzer (Android) or NetSpot (iOS) to check channel load.
📡 Check if the router is located near sources of interference (microwaves, cordless phones, other routers).

Solutions:

🔄 Change Wi-Fi channel In your router settings. Optimal channels for 2.4 GHz are 1, 6, and 11. For 5 GHz, any with minimal congestion are best.
📶 Boost the signal:
- Move the router closer to the tablet.
- Use a repeater or mesh system (eg. TP-Link Deco).
- Update your router antennas (if they are removable).
🔒 Turn off Wi-Fi power saving on the tablet (Settings → Wi-Fi → Advanced → Power saving mode).

6. Conflict with other network devices

Sometimes the tablet can't obtain an IP address due to conflicts with other devices on the network. This could be due to:

🖥️ Another router on the network (for example, if you have two routers with DHCP enabled).
🔌 Device with static IP, which falls within the DHCP range.
🛡️ Firewall or antivirus, blocking DHCP requests.

How to check:

Disconnect all devices from the network except the tablet and router. If the IP address appears, reconnect the remaining devices one by one to find the culprit.
Check if there's a second router on the network with DHCP enabled. If so, disable DHCP on the second device or configure it as a bridge.
Temporarily disable your firewall (for example, Kaspersky, Avast) on the tablet and check the connection.

IP address conflict solution:

Go to your router settings and check the DHCP range (for example, 192.168.0.100–192.168.0.199).
Make sure that no device on the network has a static IP in this range.
If there is a conflict, change the device's static IP or expand the DHCP range.

7. Hardware problems with the tablet or router

If all software methods have been tried, but the tablet still does not receive an IP address, it is possible hardware malfunctions:

📡 The tablet's Wi-Fi module is damaged. (for example, after a fall or exposure to moisture).
🔌 The portable router is faulty (overheats, distributes IP unstably).
🔋 Nutritional problems (the router is not receiving enough voltage, which is why DHCP works intermittently).

How to diagnose:

Connect your tablet to a different Wi-Fi network (for example, at a cafe or at a friend's place). If the problem persists, the tablet's module is faulty.
Connect another device to your router. If it also doesn't receive an IP address, the problem is with the router.
Check to see if your router is overheating. If it is, let it cool down or move it to a more ventilated area.

Solutions:

🔧 If your tablet is faulty, contact a service center. Wi-Fi module repairs cost between 1,500 and 4,000 rubles (depending on the model).
🔄 If the problem is with the router, try resetting it to factory settings. If that doesn't help, replace it.
🔌 Check your router's power supply. If it's not providing enough voltage, replace it.

⚠️ Attention: On some tablets (eg. Lenovo Tab or Huawei MediaPadThe Wi-Fi module may be disconnecting due to a swollen battery putting pressure on the motherboard. If the tablet is also draining quickly, it's time to check the battery.

8. Features of corporate and public networks

If the tablet does not receive an IP address in office, university or public place (hotel, airport), the problem may be related to:

🔐 Authentication via the portal (you need to open your browser and accept the terms).
📜 MAC address restrictions (your network administrator must add your device).
🔒 Security policies (for example, blocking unknown devices).

What to do:

Open a browser on your tablet. If an authentication page appears, enter your username/password or accept the terms.
Contact your network administrator (at your office or university) and ask if your device's MAC address needs to be registered.
If the network requires certificates (eg. EAP-SIM or 802.1X) - install them through Settings → Wi-Fi → Advanced → Certificates.

Corporate networks often use IP address binding (static leases) to MAC addresses. If the administrator hasn't added your tablet to the list of approved devices, DHCP won't assign you an address.

FAQ: Frequently Asked Questions

My tablet says "Obtaining IP address," but nothing happens. What should I do?

First, reboot your router and tablet. If that doesn't help, check your router's DHCP settings (it should be enabled) and reset your tablet's network settings. Also, try connecting to a different network to rule out a hardware issue.

Wi-Fi works on other devices, but not on the tablet. What's wrong?

The problem is most likely with your tablet's settings: reset your Wi-Fi settings, check your MAC address (it may be blocked by your router), or try connecting with a static IP. Also, make sure your tablet isn't running a VPN or proxy, which could block DHCP.

After updating my router firmware, my tablet stopped receiving an IP address. How can I fix this?

Update your router firmware to the latest version or roll back to the previous version. Also, check your DHCP settings—sometimes the address ranges are reset after an update. If that doesn't help, reset the router to factory settings.

Is it possible to manually assign an IP address to a tablet if DHCP is not working?

Yes. Go to the Wi-Fi settings on your tablet, select your network → “Edit” → “Advanced” → “IP Settings” → “Static.” Enter an IP from your network range (e.g. 192.168.0.150), mask 255.255.255.0, gateway (router IP) and DNS (for example, 8.8.8.8).

The tablet gets an IP address, but the internet isn't working. What should I check?

If there is an IP, but there is no network access, check:

DNS settings (try 8.8.8.8 or 1.1.1.1).
Proxy settings (should be "None").
Is your antivirus or VPN blocking the Internet?
Does the Internet work on other devices (if not, the problem is with the provider).