C:\Program Files\Netease\MuMuPlayer\nx_device\12.0\shell>adb connect 10.0.2.15:5555 cannot connect to 10.0.2.15:5555: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection faile

The error message you are receiving indicates that the ADB (Android Debug Bridge) is unable to connect to the device at the specified IP address (10.0.2.15) and port (5555). This can happen for several reasons. Here are some troubleshooting steps you can take to fix the issue: ### 1. Check Device and ADB Server Status - **Ensure MuMu Emulator is Running**: Make sure that the MuMu Emulator is running and that the virtual device is properly initialized. - **Check Network Connection**: Ensure that your PC and the emulator are on the same network. If you're using the emulator, it is typically set up to work locally. ### 2. Verify IP and Port - **Verify IP Address**: Ensure that the IP address `10.0.2.15` is correct. Check the emulator settings or network configuration to find the right IP. - **Verify Port**: Make sure that the emulator is set up to allow ADB connections on port `5555`. Some configurations may use a different port. ### 3. Restart ADB Server You can try restarting the ADB server to resolve connection issues. Use the following commands: ```bash adb kill-server adb start-server ``` ### 4. Connect using Localhost If you’re running an emulator, you might want to try connecting with `localhost` instead: ```bash adb connect localhost:5555 ``` ### 5. Configure Windows Firewall/Antivirus Sometimes, a firewall or antivirus might block the ADB connection. You can: - Check your firewall settings to allow adb.exe through. - Temporarily disable your firewall/antivirus to check if it's the cause. ### 6. Check Emulator Settings Verify the emulator’s settings to ensure that ADB access is properly enabled. In some cases, you might need to go to the emulator's settings and confirm that the debugging mode is enabled. ### 7. Check for Pending Updates Sometimes, bugs can affect connectivity. Make sure that you have the latest version of the emulator and the ADB tool. Check for updates to both the MuMu Emulator and the SDK platform tools. ### 8. Use Wireless ADB Option Some emulators have a wireless debugging option. You can enable this in the emulator settings and note the IP address shown there. ### 9. Reboot the Emulator and Host Machine If all else fails, try rebooting both the emulator and your host machine. Restarting can sometimes resolve unresponsive services. ### 10. Examine Logs Finally, check the logs for any error messages that might provide more insight into what is failing. Run: ```bash adb logcat ``` If you follow these troubleshooting steps, you should be able to resolve the connection issue with ADB and the MuMu Emulator.