Your browser could not find the address for the domain you entered.
Instead of connecting to a specific address, it says the site can't be found.
Check the spelling of the address and whether the same address opens on another network.
If it is checked and resolved from above, you do not need to proceed to the next step.
Instead of connecting to a specific address, it says the site can't be found.
Difficulty Easy · Estimated time 5 minutes
Check points: Record the error code, when it occurred, and any recent changes.
Your browser could not find the address for the domain you entered.
Difficulty Moderate · Estimated time 10~30 minutes
Check points: Check if only the same domain fails on other networks.
When troubleshooting a computer that suddenly fails to connect to the Internet, it is important to rule out the causes one at a time. Based on the “No Internet” symptom, check the router/modem or ISP problem and the network adapter/IP/DNS settings, then proceed to the next step. Compare with other devices and wired connections to narrow down where the problem occurs: PC, router, or ISP.
Among Internet problems, the “Wi-Fi connected but no Internet” symptom may be related to the router’s Internet line or DHCP/DNS problems. Check the wireless adapter status, saved profiles, router/signal quality, and driver in order.
Content review date: 2026-10-07