A new app can replace the system connection
Android VpnService documents one such VPN connection at a time, with a new connection deactivating the existing interface. This discussion concerns the system service in the same user context, not browser proxies or separate user configurations.
Compare with one active connection
- Note the disconnection time and recently launched app without deleting apps or data.
- Inspect Android VPN settings or system connection information for the active provider; menus vary.
- During an interruption-tolerant test, disconnect the other VPN and start Yunbao alone, recording the result.
- Keep network and route fixed and observe whether starting the other VPN replaces it rather than repeatedly pressing both connection buttons.
- Ask the administrator about managed or automatically restored connections. An app name alone does not prove it uses a VPN interface.
Replacement is not proof of server failure
A change of system provider is a client-side clue, not proof of failed node addressing, ports or account access. Share app names, OS and switching order without passwords. This guide does not claim Yunbao supports VPN chaining.