Wi-Fi Connected but No Internet? Diagnose and Fix It Safely
A Wi-Fi connection only confirms that your device reached the router. Use this sequence to find why the router cannot deliver internet access.
1. Define the scope
Try a second phone or computer on the same Wi-Fi, then test the affected device on cellular data or another network. One-device failures usually point to saved network settings, VPN, proxy or security software; all-device failures point to the router, modem or ISP.
2. Check the local link and modem
Open the router gateway. If it loads, Wi-Fi is working locally. Check the WAN address and modem lights. A red LOS light, missing WAN address or repeated reconnects requires line or provider investigation rather than DNS changes.
3. Repair the device safely
Forget and rejoin the network, disable VPN or proxy temporarily, and obtain a fresh IP address. If numeric IP sites work but domain names do not, test a reputable DNS resolver. Public Wi-Fi may require opening its sign-in portal.
4. Escalate with evidence
Record the outage time, affected devices, modem lights and whether Ethernet works. Contact the ISP when every device fails or the WAN link is down. Avoid repeated factory resets because they can remove PPPoE, VLAN or phone settings.
Frequently asked questions
Why does my phone say connected without internet?
It reached the Wi-Fi access point but could not complete an internet connectivity check. The WAN link, DNS, sign-in portal or device settings may be responsible.
Will changing DNS always fix it?
No. DNS helps only when the internet path works but names cannot be resolved. It cannot repair a failed modem or ISP outage.
Should I press the router reset button?
Not first. A factory reset erases configuration. Reboot normally and save provider credentials before considering a reset.
Check whether the connection can reach a test server before changing router settings.
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