During the DNS diagnosis process, it was determined that the Internet connection was unavailable.
I'm connected to Wi-Fi, but the webpage doesn't open.
Check whether other devices also cannot access the internet.
If it is checked and resolved from above, you do not need to proceed to the next step.
I'm connected to Wi-Fi, but the webpage doesn't open.
Difficulty Easy · Estimated time 5 minutes
Check points: Record the error code, when it occurred, and any recent changes.
During the DNS diagnosis process, it was determined that the Internet connection was unavailable.
Difficulty Moderate · Estimated time 10~30 minutes
Check points: Compare the behavior of your PC with other devices on the same Wi-Fi.
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