Reviewed by Router Setup Editorial Team Last reviewed:

When every other device works, the shared router and ISP path are probably healthy. Focus on the affected client's address, DNS, proxy, VPN and saved network state.

First checks

  1. Forget and rejoin the Wi‑Fi network or renew the wired connection.
  2. Check whether the device received a valid IP, gateway and DNS servers.
  3. Disable any manual proxy, VPN or security filter temporarily for testing.

How to interpret the result

A self-assigned address indicates DHCP failure on that client. A valid local address with no domain access may indicate DNS. If an Internet IP works but names do not, inspect DNS and browser secure-DNS settings. Compare another user account or safe mode where practical.

What this symptom usually does not prove

Do not factory-reset the router when all other clients use it normally.

Escalate with useful evidence

Record which devices are affected, whether Ethernet and Wi‑Fi behave differently, the router or gateway status, and the exact time of the fault. This evidence helps distinguish a local client issue, radio problem, routing policy, upstream service fault or failing hardware.

Before a factory reset

Restart the relevant device first and save any ISP, Wi‑Fi, reservation, port-forwarding or mesh information needed to rebuild the network. A factory reset is a configuration-recovery action, not a universal diagnostic test.

Related troubleshooting

Safety: Do not share router passwords or remote-control codes to diagnose this symptom.