Internet Connection Troubleshooter
Answer a few practical questions about Wi-Fi, Ethernet, and websites. The result is a likely cause with steps and Practical PC guides, not a guaranteed diagnosis.
Question 1
What problem are you having?
How this tool works
Each answer hides options that no longer fit, then lands on an outcome such as DNS, a weak Wi-Fi signal, or a router/ISP issue. Language stays cautious: "most likely," not "this is definitely it."
The tree runs in your browser. Nothing about your network is uploaded.
Important limitations
Two different problems can look the same from questions alone. If a step does not help, follow the linked guide rather than repeating random Command Prompt snippets from forums.
Frequently asked questions
Does this test my live connection?
No. It only uses your answers. For DNS records of a public domain, use the DNS Lookup tool. To see the public IP this site receives, use the IP Address Checker.
Should I download a network repair app?
No. Unofficial "Wi-Fi fixer" installers are a common malware path. Use Windows settings and the guides linked from your result.