A Wi-Fi icon appears on a tablet's screen but there's no internet access, a common problem with home networks. The user sees an available network and enters the correct password, but the device either freezes at the "Obtaining IP address" stage or returns the "Unable to connect" error.
This behavior can be caused by a software glitch in the device itself or incorrect router settings. Often, the culprit is an IP address conflict or a malfunction in the provider's DNS servers. It's important to understand that the problem isn't always with the tablet itself, so diagnostics should be comprehensive.
In this article, we'll cover the basic methods for restoring your connection. You'll learn how to reboot network modules, change static addresses, and reset your router. By following these instructions, you can regain access to the global network without calling a technician.
Initial diagnostics and equipment reboot
The first step when encountering any network issues should be a simple reboot of the devices. This isn't just a cliché, but a real way to clear the network module cache and resolve temporary software glitches. router simply "forgets" to assign a new address to the device due to the DHCP table being full.
Unplug the tablet and router from the power outlet. Wait at least 15-20 seconds for the capacitors to fully discharge and any residual current to drain. Then, turn on the router and wait for its operating system to fully load, which usually takes 1-2 minutes, before turning on the tablet.
If the problem persists after rebooting, check the indicators on the router body. Is the light on? WAN or InternetIf the global network indicator is not active, the problem may be with your ISP and not your tablet. In this case, you should call your carrier's technical support.
Managing your tablet's network settings
Operating systems Android And iPadOS Wireless modules have their own peculiarities. Sometimes the system gets stuck in a waiting state or incorrectly processes the handshake with the access point. The first step is to reset the network settings on the device itself.
This procedure won't delete your personal files, photos, or apps, but it will erase all saved Wi-Fi passwords, Bluetooth settings, and mobile network settings. On Android, the path is usually located in the System → Reset settings → Reset network settingsOn Apple devices this is done through General → Transfer or reset iPhone → Reset → Reset network settings.
☑️ Quick diagnostic checklist
It's also critical to check the date and time on your device. If the time on your tablet differs significantly from the actual time, security certificates won't be validated and the internet connection will be blocked. Set automatic time synchronization via the network if you have a mobile data connection.
In some cases, switching between Wi-Fi modes can help. If your router broadcasts a network in the 5 GHz band and your tablet is older, it may see the network but won't be able to connect due to incompatible standards. Try forcing the router to switch to "Wi-Fi" mode. 802.11n or 802.11g via the web interface.
⚠️ Note: Resetting network settings will delete all saved Wi-Fi passwords. Make sure you remember your home network password before performing this operation.
IP Addressing and DHCP Issues
One of the most common reasons why a tablet won't connect to the internet is an IP address conflict or the inability to obtain an address automatically. Protocol DHCP It's responsible for automatically distributing IP addresses to all devices on the network. If the router's address pool runs out of available IP addresses or an error occurs, the tablet will be left without a "digital passport."
To resolve this issue, you can try manually assigning a static IP address. To do this, change the IP settings from "DHCP" to "Static" in the Wi-Fi settings on your tablet. You'll need to enter the gateway address (usually the router's address, such as 192.168.0.1) and DNS servers.
Which DNS should I use?
The fastest and most reliable public DNS servers are Google (8.8.8.8 and 8.8.4.4) or Cloudflare (1.1.1.1). Using them often resolves website access issues, even if the connection is technically working.
When manually entering the address, make sure you're not using an address that's already taken by another device. It's best to choose an address at the end of the range, such as 192.168.0.150, to minimize the risk of conflict. Also, check the subnet mask; it should match your router settings; the default value is 255.255.255.0.
DNS errors and provider settings
When Wi-Fi is connected but pages don't load, it often indicates a DNS issue. DNS is the internet's "address book," which translates website names into server IP addresses. If your ISP provides its own DNS servers, and they're malfunctioning, your tablet won't be able to open any pages.
The solution is to specify alternative DNS servers. This can be done either in the router settings (which will apply to all devices) or directly on the tablet in the advanced Wi-Fi connection settings. In the DNS 1 field, enter 8.8.8.8, and in the DNS 2 field - 8.8.4.4.
Sometimes providers use MAC address binding. If you've changed your router or reset its settings, your provider may block network access for the new device. In this case, you'll need to either clone the old device's MAC address in the new router's settings or call your provider to rebind it.
MAC Address Filtering and Router Security
Router owners often enable the "White List" feature or MAC address filtering for security purposes. When this feature is enabled, the router will ignore connection requests from all devices except those on the allowed list. A tablet will see the network and enter the password, but the connection will be immediately disconnected.
To check, log into your router's web interface (usually at 192.168.0.1 or 192.168.1.1). Find the section related to wireless networking or security (Wireless -> Wireless MAC Filtering). If the filter is enabled, you need to find your tablet's MAC address (it's listed in the "About phone" or "About device" section) and add it to the allowed list.
⚠️ Note: The MAC address is a unique identifier for a network interface. Don't confuse the Wi-Fi module's MAC address with the Bluetooth MAC address; they can be different even on the same device.
It's also worth checking the encryption type. Modern tablets may refuse to work with older encryption standards, such as WEP or WPA/TKIPIt is recommended to set the security mode WPA2-PSK (AES) or WPA3, if your hardware supports it. This will ensure not only compatibility but also data protection.
Where can I find my MAC address on Android?
Typically, the path looks like this: Settings → About phone → General information → Wi-Fi address. It has the format XX:XX:XX:XX:XX:XX.
Comparison of problem solving methods
The choice of troubleshooting method depends on the symptoms and the time available. Below is a table to help you quickly navigate the steps to take for various problem manifestations.
| Symptom | Probable cause | Solution method | Complexity |
|---|---|---|---|
| "Obtaining IP address" is taking a long time | DHCP failure or weak signal | Rebooting the router, static IP | Low |
| "Connected, no access" | DNS or ISP issues | Change DNS to 8.8.8.8 | Low |
| Connection denied | Incorrect password or MAC filter | Password check, whitelist | Average |
| The network is visible but does not connect. | Incompatibility of standards (n/g/ac) | Changing the router's operating mode | High |
If none of the software methods help, the problem may be hardware-related. This could be a faulty Wi-Fi module in the tablet or a damaged antenna inside the router. In such cases, diagnostics at a service center are required.
FAQ: Frequently Asked Questions
Why does my tablet connect to Wi-Fi, but the internet only works in the browser and not in apps?
The problem is most likely with your date and time settings or blocked ports. Apps require accurate system time for security protocols (SSL/TLS) to work. Check your date and time settings. Also, some antivirus programs or router settings may block access to apps but leave port 80 open for the browser.
Can a virus on a tablet block Wi-Fi?
Yes, malware can change network settings, install false DNS, or block network traffic. We recommend scanning your device with a reliable antivirus and checking your installed apps for suspicious programs with administrator privileges.
What should I do if my router is distributing Wi-Fi, but no devices can see the internet?
In this case, the problem is almost certainly with your ISP or the router's WAN port settings. Check if the WAN light is on. Try connecting the ISP's cable directly to your computer (if it has a LAN port). If you still can't connect to the internet, call your ISP.
Will resetting my tablet to factory settings help?
A hard reset deletes all data and returns the device to its out-of-the-box state. This is guaranteed to resolve software conflicts, but is a last resort. Use this method only if all other methods fail, and be sure to back up your data.