How to Fix Sling ‘Authorization Error 8-12’

Some users are encountering the ‘Authorization error occurred. Please try again later. (8-12)‘ error when trying to watch a show via the Windows 10 UWP app, on a desktop browser via Sling, or using a FireStick / Roku stick. This issue is confirmed to occur with Firefox, Brave, Opera, Chrome, and a couple of other 3rd party browsers.

How to Fix Sling Authorization Error 8-12

After investigating this particular issue thoroughly, it turns out that there are several well-known culprits that might be responsible for the apparition of this error code:

  • Fire Stick / Roku stick glitch – As it turns out, this issue can also be associated with some kind of corrupt[ted data that is affecting the device that you’re using when streaming content. By far, this issue is confirmed to occur with Roku and Fire TV sticks from amazon. In this case, you can fix the issue by power-cycling the streaming device that you’re actively using.
  • Widevine infrastructure is missing – If you’re browser that doesn’t support the Widevine DRM infrastructure natively, you will need to install the required plugin / addon before you will be able to stream content from places like Sling TV, Netflix or Amazon. On most browsers, this is just a matter of clicking on Allow when prompted to do so.
  • Content is no longer available – If this issue only occurs with specific content, it’s possible that you are trying to stream a title that you no longer have the rights to stream. This typically occurs with preview only titles that are only available temporary on Sling TV.
  • Corrupted Sling TV UWP app – In case you’re only encountering this issue while using the Universal Windows Platform app of Sling TV, chances are you’re dealing with some corrupted data that affects the local installation. Most users encountering this issue have confirmed that they’ve been able to fix this issue by resetting the UWP app before reinserting their Sling TV credentials.
  • Account related issue  – It’s not uncommon for this problem to be caused by glitched data associated to an account that is simultaneously used on multiple devices. Several affected users dealing with the same problem have reported that the issue was finally fixed after they have opened a support ticket with Sling TV.

Now that you know every potential culprit that might be causing this error code, here’s a list of methods that other affected users have successfully used to fix this particular issue:

Method 1: Power-Cycling Fire Stick / Roku Stick (if applicable)

As it turns out, this type of issue is often associated with corrupted cached data that’s affecting the device that you’re using to facilitate playback from Sling. This issue is most commonly reported to occur with Fire Sticks and Roku sticks.

A lot of affected users that we’re encountering the Authorization error occurred (8-12) error inside the Sling app when using Roku or Firestick have confirmed that the issue was resolved after they power-cycled their streaming device of choice.

If you find yourself in a similar scenario, follow the instructions to power-cycle your streaming device and fix the Authorization error occurred (8-12) error. Ensure that you’re following the instructions applicable to your streaming gadget of choice:

A. Power-cycling your Roku Device

  1. To reset your Roku device, just unplug it from the power outlet and wait for at least 10 seconds to give the power capacitors enough time to clear themselves.
  2. After this time period has passed, plug the Roku device back on, then press any button on the Roku remote immediately after you see the signal appearing on the screen.
    Pressing any key on the Roku remote
  3. Open the Sling app once again and see if the Authorization error occurred (8-12) error is now fixed.

B. Power-cycling your Fire TV Stick

  1. If you’re actively using any app using the Fire TV stick, close it completely and make sure it’s not running in the background.
  2. Wait for a full minute before allowing the power capacitors enough time to drain themselves.
    Unplugging the Fire TV stick from the power outlet
  3. Plug the Fire TV stick back to a power outlet and open the Sling app inside its interface to see if the issue is now fixed.

If this issue is still occurring, move down to the next potential fix below.

Method 2: Install Widevine (if applicable)

If you’re encountering this error code on the Brave or a similar Chromium-based browser, you must install the Widevine plugin if you want to stream content from websites that have some kind of DRM attached (this is the case with most clients of this kind including Sling TV)

In case you find yourself in this scenario, you don’t need to install Widevine from a custom location. However, your browser should display a prompt (typically on the right-hand side of the screen) if the Widevine infrastructure is needed.

Allowing the Widevine plugin

If you see this kind of pop-up, click on Allow (or install) and wait until the DRM software is installed before re-trying to play the content that was previously triggering the Authorization error occurred (8-12) error.

In case you already did this unsuccessfully or you’re using a browser that supports Widevine natively, move down to the next potential fix below.

Method 3: Checking for Availability of Content

Keep in mind that it’s not uncommon to see this type of issue in a scenario where you are trying to watch specific content that you no longer have access to. This is typically the case with movies available for preview only for a certain duration.

According to a lot of affected users, you can expect to see the Authorization error occurred (8-12) error if content associated with the free preview has been cached by your browser.

You can check the official Sling TV support page to see if you’re actually dealing with a free preview that has expired. If this scenario is applicable, there is nothing you can do to watch the free preview if it has actually expired.

But what you can do is clear the cached data related to your browser to ensure that you don’t get to see the same error code again.

In case you are not experiencing the Authorization error occurred (8-12) error with preview content and you have the rights to view the content that’s causing this error, move down to the next method below.

Method 4: Resetting the Sling TV app (if applicable) 

If you’re encountering the Authorization error occurred (8-12) error on a Windows 10 computer only when using the UWP app (streaming via your web browser is fine), chances are you’re dealing with some kind of corruption instance that is inhibiting the apps ability to maintain a connection with the main server.

Note: If you haven’t tried this yet, start by disconnecting from the app before reinserting your credential to sign back into the app.

Several affected users that found themselves in a similar scenario have confirmed that they managed to fix the issue by using the Apps & Features app to effectively reset the Sling TV app back to its original state.

If you haven’t tried this yet and you find yourself in the exact scenario described above, follow the instructions below to effectively reset the Sling TV app:

  1. Press Windows key + R to open up a Run dialog box. Next, type ‘ms-settings:appsfeatures’ inside the text box and press Enter to open up the Apps & Features screen of the Settings app.
    Accessing the Apps & Features screen
  2. Once you’re inside the Apps & Features menu, move over to the right-hand section of the screen and use the search function to search for ‘sling tv‘.
  3. Next, from the list of available options, click on Sling, then click on Advanced options from the list of available options.
    Accessing the Advanced Options menu
  4. Inside the Advanced Options menu of Sling TV, scroll down to the Reset tab and click on the Reset button once. When you get asked to confirm, click on Reset once again and wait for the operation to complete.
    Resetting the Sling app
  5. Once the operation is complete, restart your computer and launch the Sling app once the next startup is complete to see if the problem is now fixed.

In case you still end up encountering the same Authorization error occurred (8-12) error, move down to the next potential fix below.

Method 5: Contact Sling’s Support

If none of the methods above have worked in your case, you should open a support ticket and get in contact with a Sling team representatives. If your payment plan is in order, the support agent has the ability to reset your temporary account data which might end up fixing this issue.

A lot of users have reported that going this route finally allowed them to fix the Authorization error occurred (8-12) error after encountering this issue with every browser or device they attempted to use Sling on.


Kevin Arrows

Kevin Arrows is a highly experienced and knowledgeable technology specialist with over a decade of industry experience. He holds a Microsoft Certified Technology Specialist (MCTS) certification and has a deep passion for staying up-to-date on the latest tech developments. Kevin has written extensively on a wide range of tech-related topics, showcasing his expertise and knowledge in areas such as software development, cybersecurity, and cloud computing. His contributions to the tech field have been widely recognized and respected by his peers, and he is highly regarded for his ability to explain complex technical concepts in a clear and concise manner.