This means we weren’t able to set the pin that you requested.
To resolve this problem, try the following solutions, and then try to set your pin again.
See the Xbox One Sign-In Solution to verify that you’re signed in to your console.
Note Double-tapping the Xbox button will open the guide from any other screen on the console.
Scroll to Settings and select All Settings.
Under Network, select Network Settings.
Select Test Network Connection. If the connection test is successful, your console will connect to Xbox Live.
Would you like to contact Support regarding the "Error 876C0002 occurs when you try to pin an item to your Home screen" issue you were reading about or a different issue?