: Activation codes are typically short-lived for security. If yours fails or expires, simply go back to the app on your TV, select "Sign In" again, and a fresh code will appear. Enter this new code at the official activation site.
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: Open a Private or Incognito window in your browser and try navigating to the activation link again. Alternatively, clear your browser's history and cookies before entering the code. 3. Asymmetric Network Issues : Activation codes are typically short-lived for security