If you're staring at a "DNS Server Isn't Responding" error, your device can reach the router, but it can't translate "google.com" into an IP address. The connection chain is broken at the lookup phase.The immediate 3-step fix that resolves 85% of cases:Flush the Cache: On Windows, open Command Prompt as Admin and run ipconfig /flushdns. On macOS, open Terminal and run sudo dscacheutil -flushcach..
