How Do I Fix Silverlight Upgrade Errors on Netflix?

You can troubleshoot errors you encounter while upgrading or playing videos on Netflix.com by checking your settings in your system clock, Silverlight and Internet Explorer. Microsoft recommends running the Fix It Tool, which automatically uninstalls and then re-installs Silverlight, to help resolve errors with Netflix. If you're still encountering problems after running the Fix It Tool, you may need to reconfigure security restrictions in Internet Explorer and enable application storage in Silverlight in order to stream videos. After each method, try to play a Netflix video in Internet Explorer to see if your problem has been resolved.

Smiling business woman with computer in restaurant
Microsoft Silverlight is a Web browser plugin for interactive media and apps.
credit: Siri Stafford/Digital Vision/Getty Images

Check Date and Time Settings

Step

Click the clock on the right of your taskbar, then select "Change Date and Time Settings." If the date and time in the Date and Time dialog reflects the correct date and time, you do not need to change these settings.

Step

Click the "Change Date and Time…" button on the Date and Time tab. Select the correct date by clicking on today's date in the calendar box under "Date." Enter the correct time into the field under "Time."

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Click the "OK" button. Click "OK" again to close the Date and Time dialog. Your system clock in your taskbar reflects your updated date and time settings. Open Netflix to see if you no longer receive an error when playing a video.

Uninstall and Re-install Silverlight with the Fix It Tool

Step

Download the Microsoft Fix It Tool from the Microsoft Support website (link in Resources). This tool is designed to resolve problems with Silverlight by cleaning and uninstalling it from your PC.

Step

Open the file and click "Next." The Microsoft Silverlight window displays the message "Resolving Problems" while it uninstalls Silverlight.

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Click "Install" and follow the prompts to install the software. If the Fix It Tool resolves your issue, the message "Fixed" with a green check icon appears in the Problems Found box after the tool has finished running. Click the "Close" button to close the Microsoft Silverlight window.

Edit Trusted Sites in Internet Explorer

Step

Open Internet Explorer, click the "Tools" gear icon and then "Internet Options." You can manage your browser settings using the Internet Options dialog.

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Click on the "Security" tab, select "Trusted Sites" and then the "Sites" button. Trusted Sites are websites you know won't harm your PC.

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Uncheck the "Require Server Verification" box. Delete any entries that relate to Netflix in the "Website" field. Enter "*.netflix.com", without the quotes, into the "Add This Website to the Zone" field and then click the "Add" button. Click "Close" to exit.

Enable Application Storage

Step

Press "Start," type "Silverlight" and then select "Microsoft Silverlight" from the search results. The Microsoft Silverlight Configuration dialog window appears.

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Click on the "Application Storage" tab. Check the "Enable Application Storage" box. If this box is already checked, click "Cancel" and then attempt another troubleshooting method.

Step

Click the "OK" button. After you've enabled application storage, Silverlight is able to stream movies and TV shows from Netflix.com.