A proxy routes supported traffic through another endpoint. A stale or unreachable proxy can prevent requests even when the underlying network works. Check whether the affected application uses system proxy settings, its own settings or neither.
Trace recent configuration changes
A work network, testing tool or previous support session may have introduced a proxy. Do not assume it belongs to the streaming service. Review the operating system's documented settings and ask the administrator on managed equipment.
Avoid random replacement proxies
An unknown public proxy can expose request information and may not support media reliably. Replacing one unexplained address with another is not a sound troubleshooting method. Restore the intended network configuration through an authorised process.
Compare the same operation
After a supported correction, test the login or media request that failed. A browser working does not prove every app follows the same proxy rules. Record the application-specific result for support.
