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A DNS error can prevent websites from loading even when your Internet connection works. Follow these fixes in order, from restarting your equipment and clearing cached lookups to changing DNS servers and checking drivers.
An ISP may block Deco if it expects a previously registered computer or router MAC address. These procedures explain how to clone that address manually or select an old router through the Deco app, using Deco M5 as the example.
If Windows connects to your TP-Link wireless network but cannot reach the Internet, check automatic addressing, the router's WAN status, and DNS. Follow the checks in order, then reboot and contact support if needed.
A valid WAN IP address does not always mean Internet access works after setup. Verify the modem connection, then try manual DNS, the specified power-cycle procedure, and finally a reset and manual setup.
Windows 11 can display a no-internet warning even when websites still work. Start with connection resets and updates, then check IPv6, connectivity-probe registry entries, and system files if the warning persists.
If your Mac joins a TP-Link wireless network but cannot reach the internet, check DHCP, the router’s WAN connection, and DNS settings in that order. These steps help distinguish an address assignment problem from a line or DNS issue.
