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An Unknown Error Has Occurred – Check Your URL & Connection Fix

An unknown error has occurred. Check your url and connection

This post will show you how to fix “An unknown error has occurred.  Check your URL and connection” within Downloader.

Downloader is the most popular application that allows side-loading APKs onto the Amazon Fire TV or Firestick.  This free application is used most notably when installing Kodi, Terrarium TV, and SET TV on the Fire TV or Fire TV Stick.

You may encounter the above error on the Fire TV 3 when attempting to download or install applications that aren’t available within the Amazon App store.  The reason for this error is because permissions aren’t granted for file access upon first installing the Downloader application.

If you don’t allow for Downloader to access files on your Fire TV, there is now way for the application to download and install applications.

If you are receiving this error, refer to the following screenshot guide for a quick fix.

An unknown error has occurred Check your URL and connection Fix

Step 1 – Hover over Settings menu item on Fire TV

Hover over Settings

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Step 2 – Click Applications

Click Applications

Step 3 – Click Manage Installed Applications

Click Manage Installed Applications

Step 4 – Click Downloader

Click Downloader

Step 5 – Click Clear data

Click Clear data

Step 6 – Click Clear data again

Click Clear data again

Step 7 – Click back button on remote and return to previous menu

Step 8 – Click Downloader


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Click Downloader

Step 9 – Click Launch application

Click Launch application

Step 10 – Click Allow for Downloader to access photos, media and files on your device

Click Allow for file access

Downloader will now work as intended and you will no longer receive error message

Downloader now works

If you have problems with the above steps, another solution is to uninstall Downloader and then reinstall.  You can uninstall the application by going to Fire TV Settings / Applications / Manage Applications / Downloader / Uninstall.


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12 thoughts on “An Unknown Error Has Occurred – Check Your URL & Connection Fix”

  1. TROY

  2. Downloader says connecting url is correct then “Unknown error has occurred. Downloader is up to date files are accepted etc.

    Can you advise issue or how to correct tidbit

    1. TROYPOINT - Ryan

      Hi Bert, I would first suggest clearing the app data/cache for Downloader and if that doesn’t work try a quick device restart

  3. Hi I have had this issue when my Wi Fi receiver in the android box was giving low download speeds even though I have gigabit broadband. I connected box on ethernet cable and downloader worked. The only way I can use the box is on ethernet as Wi Fi section is faulty.

  4. I received new firestick already setup from my amazon account. Trying to download app
    on my tv and keep getting the error messages “an unknown error has occurred, check your url and connection” I have follow all the and I mean all the steps to get rid of this, nothing is working. Is there anything else I can do

  5. I have a Fire TV. When using Downloader to try and install the Troypoint Rapid App Installer, after entering “” and selecting “Go” I get the error message ‘Error: Forbidden. Try using https if you used http’.
    I have retried with “” and “”, buit get the same error message.
    I have unistalled and reinstalled the Downloader app and aldso confirmed that allow unknown sources for Downloader is definitely “On”, but this makes no difference.

    1. Hi Steve, a few things. You must be on Android 6 or higher. If using an older version of Android, this won’t work. Try rebooting your router, and streaming device and try again.

      1. I have tried both methods to sort the URL but still keep getting the same message. Check URL and connection. I’m going round in circles. Can anyone help

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