WiFi ADB Connection Failed

Symptoms

• Can’t connect via WiFi
• “Connection refused” error
• “Connection timed out”
• Device found but won’t connect

Prerequisites Check

Requirement	How to Verify
Same WiFi network	Both devices show same network name
WiFi debugging enabled	Phone → Developer options → Wireless debugging
Correct IP address	Check phone’s WiFi settings for IP
Correct port	Usually 5555 or shown in wireless debugging

1. Verify Same Network

Both computer and phone must be on the exact same WiFi network:

• Check computer: Click WiFi icon, note network name
• Check phone: Settings → WiFi, note connected network
• Must match exactly (case-sensitive)

2. Android 11+ (Wireless Debugging)

1. On phone:
   • Settings → Developer options → Wireless debugging → ON
   • Tap “Wireless debugging” to open settings
   • Tap “Pair device with pairing code”
   • Note the IP, Port, and Pairing code
2. In FeedFlux:
   • Devices → Connect via WiFi
   • Enter IP and pairing port
   • Enter pairing code
   • Click Pair, then Connect

3. Android 10 and Below (Traditional Method)

Requires initial USB connection:

1. Connect phone via USB
2. In FeedFlux, with device connected:
   • Click device menu → Enable WiFi ADB
   • Note the IP address shown
3. Disconnect USB
4. Devices → Connect via WiFi
5. Enter IP:5555
6. Click Connect

4. Firewall Blocking

Windows Firewall may block ADB:

1. Open Windows Security → Firewall & network protection
2. Click Allow an app through firewall
3. Click Change settings → Allow another app
4. Browse to C:\Program Files\FeedFlux\resources\adb\adb.exe
5. Add and check both Private and Public
6. Click OK

5. Router Isolation

Some routers block device-to-device communication:

• Check router settings for “AP Isolation” or “Client Isolation”
• Disable this setting
• Or use a different WiFi network

6. IP Address Changed

Phone IP can change over time:

1. Check current IP: Settings → WiFi → Connected network → IP address
2. Update IP in FeedFlux connection
3. For stability, set a static IP on your phone