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Change from "Vimu Engine v2" to (based on ExoPlayer 1). This is more stable for older devices. Disable Tunneling:

: This is the default engine for Vimu, based on the latest ExoPlayer . It is designed for modern Android TV and Fire TV devices to handle high-resolution formats like 4K HEVC and Dolby Vision .

: If you are using a VPN (like ProtonVPN), try disabling it. Network routing through certain VPNs can cause "streams not available" or playback errors in ViMu. Refresh API Keys