Netflix Error MS2104

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

The Netflix.com player runs on the Microsoft Silverlight platform. Microsoft provides a free Fix It tool that you can download and run to resolve many Silverlight issues on computers running Windows 7 or later. Netflix recommends using the Microsoft Fix It Tool to resolve this error.

Fix it

Link to Microsoft Fix it Tool for Silverlight

If the Fix it Tool didn't clear the error, or if you're running Windows XP or Vista, try the troubleshooting steps below.

Clear your browser cache

Open your Internet browser and follow the steps below,

  • Internet Explorer (9 and Newer):
    1. Select the gear icon Internet Explorer Settings Icon
    2. Select Internet Options
    3. Under Browsing History, select Delete
    4. Uncheck all except Temporary Internet Files
    5. Click Delete
  • Firefox (10 and Newer):
    • Click the menu button
    • Select the history drop down menu
      • Select History button for newer versions
    • Select Clear Recent History
    • Under Details, uncheck everything except Cache
    • In the Time Range to Clear dropdown, select Everything
    • Then click Clear Now
  • Chrome (version 23 and newer):
    • Click the menu button
    • Select History
    • Select Clear Browsing Data and uncheck everything except Cached images and files
    • In the Obliterate the following items from dropdown, select the beginning of time
    • Click Clear Browsing Data

Troubleshoot your browser
  1. Clear browser cookies
    Your browser may be referencing an outdated or corrupted setting in the cookie file.
    1. Go to netflix.com/clearcookies to clear the Netflix cookie. This will sign you out of Netflix.com.
    2. Select Netflix Home, then Member Sign In to log back in and play your movie or TV show again.
  2. Restart your browser
    Sometimes restarting your browser can clear this issue.
    • Quit your browser, restart it, and play your movie or TV show again.
  3. Try another browser
    A browser extension, plug-in or add-on may be causing this error. Try playing your movie or TV show in another browser.
    • If you're unable to play your movie or TV show in multiple browsers, there may be a problem with the Silverlight Plug-in used by Netflix.com.

Uninstall and Reinstall the Silverlight Plug-in

You may be running an outdated version of the Silverlight plug-in, or the plug-in may have become corrupted.

To uninstall the Silverlight plug-in:

Windows 8

  1. Quit all open browsers - including this window! You may want to print the following steps.
  2. Swipe from the right edge of the screen, then tap Settings. (If you're using a mouse, point to the lower-right corner of the screen, then click Settings.)
  3. Select Control Panel
  4. Underneath Programs, select Uninstall a program.
  5. Locate and select Microsoft Silverlight
  6. Select Uninstall

Windows 7/Vista

  1. Quit all open browsers - including this window! You may want to print the following steps
  2. Click on the Start Button
  3. Select Control Panel
  4. Set the View by in the top right to Category
  5. Under Programs select Uninstall a program
  6. Locate and select Microsoft Silverlight
  7. Select Uninstall

Windows XP

  1. Quit all open browsers - including this window! You may want to print the following steps.
  2. Click on the Start Button
  3. Select Control Panel
  4. Select Add or Remove Programs
  5. Locate and select Microsoft Silverlight
  6. Click Remove

To install the latest version of the Silverlight plug-in:

  1. Navigate to the Watch Instantly home page and click play on any title.
  2. Follow the prompts to download and Install Silverlight on Your Windows PC.

Do you have anti-virus software installed?

Sometimes anti-virus software such as Webroot, Kaspersky, Immunet, or Intego VirusBarrier can interfere with the player Netflix uses to play movies and TV shows.

  • Disable your anti-virus software and play your movie or TV show again.
  • If a movie or TV show resumes after disabling your anti-virus software, this may indicate that the software could be outdated or unintentionally preventing the Netflix service from playing.

If you continue to see the error, there may be additional configuration settings within your browser settings preventing you from watching a movie or TV show. While trying to watch from a different browser you may not see these specific configuration issues. Please reach out to your anti-virus software manufacturer or a trusted IT professional for assistance with these issues.

Steps for Mac

Troubleshoot your browser
  1. Clear browser cookies
    Your browser may be referencing an outdated or corrupted setting in the cookie file.
    1. Go to netflix.com/clearcookies to clear the Netflix cookie. This will sign you out of Netflix.com.
    2. Select Netflix Home, then Member Sign In to log back in and play your movie or TV show again.
  2. Restart your browser
    Sometimes restarting your browser can clear this issue.
    • Quit your browser, restart it, and play your movie or TV show again.
  3. Try another browser
    A browser extension, plug-in or add-on may be causing this error. Try playing your movie or TV show in another browser.
    • If you're unable to play your movie or TV show in multiple browsers, there may be a problem with the Silverlight Plug-in used by Netflix.com.

Uninstall and Reinstall the Silverlight Plug-in
You may be running an outdated version of the Silverlight plug-in, or the plug-in may have become corrupted.

To uninstall the Silverlight plug-in:
  1. Quit all open browsers - including this window! You may want to print the following steps.
  2. Click the Finder icon from the Dock at the bottom of the screen.
  3. In the menu bar at the top of the screen, select Go then Computer.
  4. Click the Macintosh HD icon.
  5. Select Library.
  6. Select Internet Plugins.
  7. Drag Silverlight.plugin to your trash.
  8. Once you have emptied your trash, Microsoft Silverlight un-installation is complete.
To install the latest version of the Silverlight plug-in:
  1. Navigate to the Watch Instantly home page and click play on any title.
  2. Follow the prompts to download and Install Silverlight on Your Mac.

Some members may encounter the message "Silverlight.dmg cannot be opened because it is from an unidentified developer" when attempting to install Silverlight. This is fairly common for applications that are not downloaded from the Mac App store. If you encounter this message, continue with the following steps to complete your Silverlight installation.

  1. Right-click or hold Control on your keyboard and click on Silverlight.pkg.
  2. Click Open on the pop-up menu.
  3. Click Open on the prompt that says "Silverlight.pkg" is not from the Mac App Store. Are you sure you want to open it? Opening "Silverlight.pkg" will always allow it to run on this Mac.
  4. Follow the prompts to complete installation.

Do you have anti-virus software installed?

Sometimes anti-virus software such as Webroot, Kaspersky, Immunet, or Intego VirusBarrier can interfere with the player Netflix uses to play movies and TV shows.

  • Disable your anti-virus software and play your movie or TV show again.
  • If a movie or TV show resumes after disabling your anti-virus software, this may indicate that the software could be outdated or unintentionally preventing the Netflix service from playing.

If you continue to see the error, there may be additional configuration settings within your browser settings preventing you from watching a movie or TV show. While trying to watch from a different browser you may not see these specific configuration issues. Please reach out to your anti-virus software manufacturer or a trusted IT professional for assistance with these issues.

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