Often indicates a playback issue caused by outdated app versions or codec incompatibilities. How to Fix Errors and Make Performance Better 1. Update to the Latest Stable Version

Ensure your TV's date and time are set to "Automatic." Incorrect time causes SSL handshake errors (617).

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Switch the or try a different Video Buffer size. 4. Fix Signature Issues If you see 617 after a YouTube UI update: Go to Settings in the app. Find the Reset or Fix Signatures option. This re-syncs the app's handshake with YouTube's backend. Moving to SmartTube (The Better Choice)

If Smart YouTube TV continues to throw 617 or 391 errors, it might be time to switch to (formerly SmartTubeNext). It is developed by the same community but built on a modern engine that is significantly more stable. Why SmartTube is Better:

Ensure your DNS isn't blocking YouTube's video delivery domains.

Change the from Auto to a specific resolution (e.g., 1080p).