Wi-Fi is connected, but there's no internet: how to fix the error in 5 minutes

You have a Wi-Fi signal, but pages won't load, and there's an exclamation point next to the connection icon? This problem is familiar to every second home network user. "No Internet Access" Error It can appear on any device, from a smartphone to a smart TV, and usually occurs unexpectedly, confusing even experienced users.

The reasons for this network behavior are varied, ranging from simple router malfunctions to complex IP address conflicts. The good news is that in 90% of cases, the problem can be resolved independently without calling a technician. In this article, we'll look into the matter. all possible reasons We'll explain how to troubleshoot a lack of internet access while Wi-Fi is working and provide step-by-step instructions for each scenario. You'll learn how to diagnose the problem, which settings to check first, and what to do if standard methods don't help.

We will pay special attention to hidden traps, which are rarely covered in standard instructions. For example, why resetting a router sometimes makes the problem worse or how to determine if your router is at fault, not your ISP's equipment. All solutions have been tested on current router models (TP-Link Archer C6, Keenetic Giga, ASUS RT-AX55) and devices running Windows 11, Android 14, iOS 17.

Before you start setting up, please follow these steps: basic check:

  1. Make sure the internet is down on all devices, not just one.
  2. Check if the indicator light is on INTERNET or WAN on the router (should light up green or blue).
  3. Try connecting to the network via cable - if there is no internet there either, the problem is on the provider's side.
📊 What's not working for you when connected to Wi-Fi?
Internet only (there is a signal)
There is no signal or internet.
The problem only occurs on one device.
I don't know, I haven't checked.

1. Rebooting the hardware: Why it works 60% of the time

It sounds trivial, but proper reboot Resetting the router and modem solves the problem in most cases. However, few people do it correctly. Simply turning it off with the power button or via the web interface often doesn't completely clear the DNS cache and network settings.

How to reboot your equipment properly:

  1. Unplug the router and modem (if they are separate devices) from the power outlet.
  2. Wait minimum 30 seconds (for complete discharge of capacitors).
  3. First, turn on the modem (if you have one) and wait until the indicators light up steadily.
  4. After 1-2 minutes, turn on the router.

⚠️ Attention: If after reboot the indicator INTERNET If the router's light is flashing orange or red, there's a problem with your ISP. In this case, call support and provide the error code (usually displayed in the router's web interface).

On some models (Zyxel Keenetic, MikroTik) after reboot it may be necessary PPPoE/L2TP re-authenticationCheck the web interface for a notification asking you to enter your provider's login and password.

2. Checking IP and DNS settings: fixing address conflicts

The "No Internet Access" error often occurs due to incorrect network parameters, which the device receives from the router. This could be:

  • 🔹 IP address conflict (two devices received the same address)
  • 🔹 Incorrect DNS servers (the router is distributing outdated or blocked DNS)
  • 🔹 DHCP issuance failure (the device does not receive an address automatically)

How to check and correct settings:

On Windows:

  1. Open Settings → Network & Internet → Wi-Fi → Manage known networks.
  2. Select your network, click Properties.
  3. Scroll to section IP settings and make sure it's worth it Obtain an IP address automatically.

On Android/iOS:

  • Forget the network (Settings → Wi-Fi → [your network] → Remove/Forget).
  • Please reconnect by entering your password.

If getting your address automatically doesn't work, try manually enter DNS:

  • 🔹 Google DNS: 8.8.8.8 And 8.8.4.4
  • 🔹 Cloudflare DNS: 1.1.1.1 And 1.0.0.1

⚠️ AttentionIf the internet works after manually setting the DNS, but then goes away again after a while, the problem is with your router's DHCP settings. You need to go to the web interface and check the range of addresses being distributed (usually 192.168.1.100–192.168.1.200).

Make sure the IP is obtained automatically|

Check for IP conflicts (ping command)|

Try alternative DNS|

Reconnect to the network after changes-->

3. Router diagnostics: what to check in the web interface

If rebooting and IP settings did not help, you need to go to the router control panel and check the key parameters. The login address is usually indicated on the device's sticker (e.g. 192.168.0.1 or tplinklogin.net). The default login and password are admin/admin or admin/empty.

What to look for in the settings:

  1. WAN connection status:

    - In the section Internet or WAN Check if the connection status is active.

    - If it is written Disconnected or Authenticating, try entering your provider login/password again.

  2. Wi-Fi operating mode:

    - Make sure the mode is enabled 802.11b/g/n/ac/ax (and not only 802.11n).

    - The channel must be installed in Auto or manually selected from a list (e.g. 6 or 11 for 2.4 GHz).

  3. MAC address filtering:

    - In the section MAC Filter Check if your device is locked.

⚠️ Attention: On routers ASUS And Netgear sometimes the parameter gets lost MTU (usually should be 1500). If it is smaller (for example, 1472), the Internet may be unstable.

If the WAN status indicates PPPoE Error 651 or 691, this means there are problems with authentication with the provider. Do not change your router settings — Call support and check if they have blocked your account.

WAN status error Possible cause Solution
PPPoE Error 651 Connection to the provider's server failed Reboot the router, check the cable
PPPoE Error 691 Incorrect login/password or account blocked Call back to the provider's support
DHCP Error IP address is not assigned Enter the IP manually or reset the router
No Internet (DNS) Problems with DNS servers Change DNS to Google/Cloudflare
How to reset a router to factory settings?

On most models you need to press and hold the button Reset (usually recessed into the case) for 10-15 seconds until the indicators start flashing. After the reset, all settings (including the Wi-Fi password) will return to factory defaults. Attention: If you have a PPPoE connection, after the reset you will need to re-enter your provider's login and password!

4. Problems on the provider's side: how to distinguish them and what to do

If all devices on the network show "No Internet access" and the indicator INTERNET If the light on the router is red or orange, it's the ISP's fault. precise signs:

  • 🔹 There is no internet on all devices (including cable connections).
  • 🔹 In the router's web interface, the WAN status is: Disconnected, No IP or Authenticating.
  • 🔹 When connecting a cable directly to a PC (bypassing the router), there is also no internet.

What to do:

  1. Call your provider's support team and provide the error code from the router's web interface.
  2. Check if there is any technical work being carried out on your line.
  3. If the provider claims that everything is fine, ask reboot the port on their equipment (this can be done remotely).

⚠️ Attention: If you have GPON- connection (fiber optic), check if the indicator is on PON or OPTICAL on the router. If it goes out or is blinking red, there may be a cable break or a problem with ONU-module.

Critical Information: Some providers (eg. Rostelecom And MTS) internet access is blocked if payment is overdue, but Wi-Fi remains available. In this case, a notice about the outstanding balance will appear in your personal account.

5. Hidden Windows settings: reset the TCP/IP stack and DNS cache

On computers running Windows 10/11 The "No Internet Access" issue may be related to network stack failureIn this case, commands that reset the device to factory settings can help.

Open Command prompt as administrator and execute the following in sequence:

netsh winsock reset

netsh int ip reset

ipconfig /release

ipconfig /renew

ipconfig /flushdns

After executing the commands restart your computerIf the problem was a software glitch, the Internet should work again.

Additional steps for Windows:

  • 🔹 Turn it off Windows Firewall for 5 minutes (sometimes it blocks DNS requests).
  • 🔹 Check if you have a VPN or proxy installed in your network settings (Settings → Network → Proxy).
  • 🔹 Update your network card driver via device Manager.

⚠️ Attention: If an error appears after resetting TCP/IP "Unable to contact the DHCP server", check if the DHCP server is enabled in the router (section LAN → DHCP Server).

6. Problems on Android and iOS: Features of mobile devices

On smartphones and tablets, the "No Internet access" error may appear due to energy saving features or a malfunctioning Wi-Fi module. Here's what to check first:

On Android:

  • 🔹 Turn off the mode Adaptive Wi-Fi (Settings → Wi-Fi → Advanced).
  • 🔹 Reset network settings: Settings → System → Reset → Reset Wi-Fi, mobile networks, and Bluetooth.
  • 🔹 Check if it is turned on airplane mode or background restriction for the browser.

On iPhone/iPad:

  • 🔹 Forget the network and reconnect.
  • 🔹 Turn it off Private Wi-Fi address (Settings → Wi-Fi → [i] next to the network).
  • 🔹 Update iOS to the latest version (older versions may have bugs with Wi-Fi).

⚠️ Attention: On some models Xiaomi And Samsung There is a bug where the device does not connect to encrypted networks. WPA3Try changing the security type in your router settings to WPA2-PSK.

7. Alternative solutions: when nothing helps

If all the previous methods didn't work, try unconventional approaches:

  • 🔹 Change the Wi-Fi operating mode:

    - Try turning it on in your router settings. 802.11n Only (if it stood Mixed).

    - Or vice versa - switch from 5 GHz on 2.4 GHz (sometimes helps with interference).

  • 🔹 Disable IPv6:

    - In the router settings (LAN or Internet) disable support IPv6 - Some providers do not work well with this protocol.

  • 🔹 Check for viruses:

    - Run a scan on your PC Malwarebytes or Kaspersky Virus Removal Tool — Some viruses change DNS settings.

  • 🔹 Use alternative firmware:

    - For advanced users: flash the router DD-WRT or OpenWRT (not all models are supported!).

If the problem appears only at certain times of the day, your Wi-Fi channel may be overloaded by neighboring networks. Use the app WiFi Analyzer (Android) or NetSpot (Windows/macOS) to select a free channel.

⚠️ Attention: Before flashing the router with alternative software Necessarily Check model compatibility on the official firmware website. Incorrect firmware may brick your device.

FAQ: Frequently asked questions about troubleshooting the error

Why is there internet on my phone but not on my computer?

This is a typical situation when the network settings on your PC are corrupted. Check:

  • Disable VPN or proxy in Windows settings.
  • Flush the DNS cache with the command ipconfig /flushdns.
  • Update your network card driver.

If that doesn't help, try connecting your computer to the router via cable. If the internet works, the problem is with your PC's Wi-Fi module.

What should I do if I lose internet after resetting my router?

After the reset, you need to reconfigure your connection to your provider:

  1. Connect to the router via cable.
  2. Go to the web interface (usually 192.168.1.1).
  3. In the section Internet or WAN select connection type (PPPoE, Dynamic IP etc.) and enter the data from the provider.

If you don’t know your connection type, call your provider’s support team.

Can an antivirus block the internet?

Yes, some antiviruses (for example, Avast, Kaspersky) block network connections if they consider them dangerous. Try:

  • Temporarily disable antivirus.
  • Add your network to the firewall exceptions.
  • Check your antivirus's Firewall settings.
How can I tell if the problem is with my router and not my ISP?

Simple test:

  1. Disconnect the cable from the router and connect it directly to the computer.
  2. If the Internet appears, the router is to blame.
  3. If not, the problem is with the provider or the cable.

Also check if the indicator light is on INTERNET On the router, the light is green. If it's blinking orange, contact your ISP.

Why is there internet, but some websites won't open?

This is a sign of DNS issues. Solutions:

  • Change DNS to 8.8.8.8 (Google) or 1.1.1.1 (Cloudflare).
  • Clear your DNS cache (ipconfig /flushdns on Windows).
  • Check the file hosts (V C:\Windows\System32\drivers\etc) for the presence of extra entries.

If that doesn't help, the websites may be blocked by your ISP (check using a VPN).