The error you're seeing is related to the Silverlight plugin, which Netflix uses to play movies and TV shows on your computer. This error is usually caused by one of three things: A computer setting preventing Silverlight from storing files it needs to play your movie or TV show An issue with the Silverlight plugin itself An issue with the content you're trying to play To fix this error, follow the steps below for your Windows or Mac computer. Steps for Windows Check your account status on Netflix.com Go to the Your Account page. Follow the instructions in the alert at the top of the page to get back to watching Netflix. Clear the Netflix cookie from your web browser Go to netflix.com/clearcookies to clear the Netflix cookie; this will sign you out of your account. Select Sign In and enter your Netflix email and password. Try Netflix again. Steps for Mac Check your account status on Netflix.com Go to the Your Account page. Follow the instructions in the alert at the top of the page to get back to watching Netflix. Clear the Netflix cookie from your web browser Go to netflix.com/clearcookies to clear the Netflix cookie; this will sign you out of your account. Select Sign In and enter your Netflix email and password. Try Netflix again.