WiFi Doctor is a WiFi analyzer and network diagnostic toolkit for Android. Investigate slow internet, weak WiFi signals, connection drops and websites that won't load with detailed measurements and clear technical reports.
WiFi Doctor combines speedtest tools and network diagnosis to help you diagnose Wi-Fi problems, investigate network errors and understand slow or unstable internet connections.
Connected to Wi-Fi but no internet? Experiencing weak signals, connection drops or websites that won't load? Run a Quick Check or explore deeper diagnostics with technical evidence and practical troubleshooting guidance.
Network diagnosis & error investigation
• Explore 80+ diagnostic checks and assessments covering device settings, Wi-Fi connections, radio conditions, LAN, DNS and internet access.
• Investigate where a network error may occur, from your phone and router to DNS resolution and internet connectivity.
• Review findings, supporting measurements and suggested next steps.
Internet speedtest & connection quality
• Run a speedtest to measure download and upload speeds.
• Check ping, jitter and packet loss to investigate gaming lag, buffering and unstable video calls.
• Follow live graphs and repeated measurements to understand connection stability.
Technical reports & AI assistance
• Inspect test methods, targets, response times, error codes and raw diagnostic results.
• Copy reports for technical support or share them with ChatGPT or Claude to ask about likely causes and troubleshooting steps.
• AI analysis takes place in your chosen external service.
Wi-Fi signal & channel analysis
• Diagnose Wi-Fi signal problems with RSSI measurements, channel graphs and signal history.
• Compare nearby networks, channel overlap, channel widths and channel recommendations.
• Explore 2.4 GHz, 5 GHz and 6 GHz bands where supported by your device.
Website connection diagnostics
• Investigate DNS errors, IPv4/IPv6 connectivity, TCP connections and TLS certificates.
• Inspect HTTP responses and redirects, compare DNS answers and use traceroute to investigate the network path.
LAN scanner & device discovery
• Find discoverable computers, phones, TVs, printers and smart home devices on your local network.
• View IP addresses, hostnames, device names, types and advertised services when available.
Live network monitoring
• Track Wi-Fi signal strength, gateway and internet latency, packet loss and connection interruptions.
• Observe changes over time to investigate recurring network problems.
Available checks and measurements depend on your Android version, device, network and permissions.
Diagnose WiFi & website issues with 80+ checks. Speedtest, channel & LAN scan