Channel Issues & Questions

Help & troubleshooting for channels on your Roku device, including adding/removing channels, logging in to, authenticating, or activating a channel, channel-specific playback issues, assistance contacting channel publishers to report issues, and adjusting channel-specific settings.
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ADM1
Level 7

Sling not working

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Since the most recent Roku update, Sling will load, but no channels can be accessed. An error code of 21-51 is displayed.

After having gone through multiple hard resets and reboots, it would appear that Roku is not correctly deleting the Sling app, as re installation does not require a sign in to Sling, as it should.

This would appear to be a Roku issue rather than a Sling issue.

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makaiguy
Community Streaming Expert

Re: Sling not working

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When problems are confined to a particular channel, it may be that the channel installation has gotten corrupted. A reinstall may fix the problem, so give it a try. Remove/reinstall procedure:

  1. Highlight channel on home screen.
  2. Press * key and choose Remove channel option.
  3. IMPORTANT- DON'T SKIP:
    From home screen, Settings > System > System restart. This assures no remnant of the old installation remains in the Roku's memory so you get a complete reinstall. It may or may not make a difference, depending on what's causing your problem, but it's worth doing.
  4. Reinstall the channel. Note it will be added to the END of the channel grid.
  5. If channel requires a login, you may need to log in anew.

If the problem persists, note that 21-51 is a Sling-reported error, not a Roku-reported error.  See if anything on the Sling page re error 21-51 helps: https://help.sling.com/en/support/solutions/articles/46000000576-error-code-21-20

Roku Community Streaming Expert

Help others find this answer and click "Accept as Solution."
Note: I am not a Roku employee, just a user like you.

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makaiguy
Community Streaming Expert

Re: Sling not working

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When reinstalling did you restart the Roku between removing and reinstalling the channel?  This is an important step to clear the Roku's memory and ensure a full installation of the latest version of the channel app.

Roku Community Streaming Expert

Help others find this answer and click "Accept as Solution."
Note: I am not a Roku employee, just a user like you.
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Williamt100
Level 11

Re: Sling not working

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Have you installed a micro SD card on your Roku?  If so, try removing the card before you go through the delete, reboot, reinstall cycle.

Both my Roku 4 and Roku Ultra seem to misbehave somewhat with a micro SD card installed.

Roku 3500X
Roku 4400X
Roku 4661X
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makaiguy
Community Streaming Expert

Re: Sling not working

Jump to solution

When problems are confined to a particular channel, it may be that the channel installation has gotten corrupted. A reinstall may fix the problem, so give it a try. Remove/reinstall procedure:

  1. Highlight channel on home screen.
  2. Press * key and choose Remove channel option.
  3. IMPORTANT- DON'T SKIP:
    From home screen, Settings > System > System restart. This assures no remnant of the old installation remains in the Roku's memory so you get a complete reinstall. It may or may not make a difference, depending on what's causing your problem, but it's worth doing.
  4. Reinstall the channel. Note it will be added to the END of the channel grid.
  5. If channel requires a login, you may need to log in anew.

If the problem persists, note that 21-51 is a Sling-reported error, not a Roku-reported error.  See if anything on the Sling page re error 21-51 helps: https://help.sling.com/en/support/solutions/articles/46000000576-error-code-21-20

Roku Community Streaming Expert

Help others find this answer and click "Accept as Solution."
Note: I am not a Roku employee, just a user like you.

View solution in original post

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ADM1
Level 7

Re: Sling not working

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I believe this is a Roku issue, rather than Sling.

After removing the Sling App, then doing a System Restart, the same issue occurs. If the Roku software was working correctly, deleting then re installing the Sling app after a System restart would require me to sign in again to Sling. However, it does not do so. What this means (after discussions with Sling) is that the Roku is not completely deleting the Sling app. There would seem to be something corrupted in the latest Roku update

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makaiguy
Community Streaming Expert

Re: Sling not working

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@ADM1 wrote:

There would seem to be something corrupted in the latest Roku update


Settings > System > System update > [press OK]

What software version does the Roku say you are running and when does it say you were last updated? Does this coincide with when your problem began?

Roku Community Streaming Expert

Help others find this answer and click "Accept as Solution."
Note: I am not a Roku employee, just a user like you.
rksobieck
Level 7

Re: Sling not working

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It is a Roku issue. I had similar problems with my old Roku, then switched to a new Roku Premier. Everything now works just as it should. Apparently Roku is no longer providing proper support or upgrades for their older units. Just get a new Roku and avoid the aggravation!

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