The "You've been disconnected from network" error in the Secret Neighbor app is a common issue, particularly on mobile and PC platforms. There are multiple potential causes, including network instability, server problems, and issues with the app's connection requirements.

Key causes and user reports:
- Many users report that even with a good internet connection, the game may fail to connect, crash, or repeatedly display the disconnection error, often citing "Reason:22" as a specific cause36.
- This issue can occur right after joining a lobby or during the login process, making the game unplayable for some3.
- Some users on PC and Xbox also face related connection/authentication errors, which may not be resolved by basic troubleshooting such as restarting or changing DNS settings4.

Common troubleshooting steps:
- On Android: Clear the app's cache and data, or reinstall the app via your device's app settings2.
- For all platforms: Ensure you have a stable and reliable internet connection.
- Update the app to the latest version, as older builds may have unresolved bugs.
- Restart your device after making network changes.
- If using a PC, consider changing DNS settings or performing a network reset1. Steps include:
- Open Command Prompt as administrator and run:
<br> ipconfig /flushdns<br> netsh winsock reset<br>
- Change DNS to Google DNS (8.8.8.8 and 8.8.4.4).
- If issues persist, perform a network reset through your system's network settings1.
- On mobile devices, issues may also be tied to Game Center or similar authentication services. Ensure you're correctly logged in and that the app has necessary permissions38.

Other considerations:
- Network configurations or strict NAT types can block required ports, causing connection disruptions58.
- There may be platform-specific server issues or the mobile version may lag behind in updates and bug fixes compared to PC and console versions, making the error more prevalent on iOS and Android3.

If you continue to experience the error after these steps, you may need to wait for a developer fix or use alternative platforms (PC or console), as some users report better stability there3.