Wi-Fi Network Diagnostics App

Displays signal strength (RSSI), link speed, estimated throughput, and channel interference for your connected Wi-Fi in real-time.

Measures download/upload speeds and latency. Also evaluates suitability for video streaming, online gaming, and video calls.

Estimates the distance to your router from RSSI using the ITU indoor radio propagation model. Applies path loss coefficients based on environment type (residential, office, commercial).

Predicts theoretical maximum channel capacity using the Shannon-Hartley theorem and real-world throughput based on IEEE 802.11 MCS tables.

Calculates link margin from the difference between receiver sensitivity and RSSI to evaluate connection stability (Excellent >20dB / Good >12dB / Marginal >6dB / Unstable).

Uses moving averages and linear regression on historical RSSI data to predict near-future signal quality.

Test network connectivity with configurable packet count. Displays RTT statistics including min, average, max, and jitter.

Query DNS records for domains. Supports A, AAAA, CNAME, MX, NS, TXT, and other record types.

Retrieve domain registration information including registrar, creation date, and expiration.

Send magic packets to remotely wake devices on your local network.

Scan target hosts to check which ports are open or closed.

Discover devices connected to your local network, showing IP address, hostname, and MAC address.

Find services on your network using mDNS/Bonjour and UPnP/SSDP protocols.

View current network configuration including IP address, gateway, subnet mask, and DNS servers.

Download the APK from GitHub Releases.

Speed Test	Diagnostics	Settings

• All processing runs locally on the device
• No data is sent to servers

./gradlew assembleDebug

Requires Android 8.0 (API 26) or higher.