Xbox (Beta) 0x8015DC12 for the last week

Okay, issue solved! Turns out (unbeknownst to me) someone had used my laptop and switched sandbox environment without alerting me!

Thanks for your help

Hi, thanks for coming back to me. I have carried out all three of your proposed solutions to no avail I'm afraid. My colleague has tried installing is on his PC and is not receiving the same error (using the same dev accounts).

Software conflicts- Already have admin so an easy one. Excluded conflicts all non-microsoft services from msconfig.

Sol 2- removed ALL MS accounts before trying again

Sol 3- done with both Beta and regular Xbox apps to be sure.

Still the same 8015DC12. FYI, the Xbox apps are the only MS login issue I'm currently experiencing (same error on both XB app and XB (Beta).

All the best

Natalie

Hi ,

The said error code occurs if there's an issue with signing in to your account on the Xbox app. It is possible that there's something wrong with the Xbox app on your computer that's why it doesn't let you sign in. When you said "fresh installs", are you
referring to reinstalling the Xbox app twice?

In the meantime, let's try to troubleshoot this issue by performing the following solutions below:

Solution 1: Perform a clean boot on your computer to eliminate software conflicts. You may refer to this
link
for the steps.

Solution 2: Remove the account in your computer.

1. Press the Windows key, and then go to Settings.
2. Go to Accounts.
3. Select Email & app accounts
4. Select the account, and then click Remove.
5. Restart the computer.

Solution 3: Reset the Xbox app.

1. Press the Windows key, and then go to Settings.
2. Click System.
3. Go to Apps & features tab.
4. Locate and select the Xbox app.
5. Click Advanced options.
6. Click Reset.

Do get back to us with the results. We'd be more than willing to provide you additional help.

Hi GnatOfPower,

The said error code occurs if there's an issue with signing in to your account on the Xbox app. It is possible that there's something wrong with the Xbox app on your computer that's why it doesn't let you sign in. When you said "fresh installs", are you
referring to reinstalling the Xbox app twice?

In the meantime, let's try to troubleshoot this issue by performing the following solutions below:

Solution 1: Perform a clean boot on your computer to eliminate software conflicts. You may refer to this
link
for the steps.

Solution 2: Remove the account in your computer.

1. Press the Windows key, and then go to Settings.
2. Go to Accounts.
3. Select Email & app accounts
4. Select the account, and then click Remove.
5. Restart the computer.

Solution 3: Reset the Xbox app.

1. Press the Windows key, and then go to Settings.
2. Click System.
3. Go to Apps & features tab.
4. Locate and select the Xbox app.
5. Click Advanced options.
6. Click Reset.

Do get back to us with the results. We'd be more than willing to provide you additional help.

From what I have heard the beta is live on Xbox 360/ Xbox one but its a closed beta until the 23rd I don't know if this it true or not but last week someone posted some beta gameplay from the upload studio on Xbox one

You have to wait until the beta will be release in mid August. The beta will last for about 2-3 weeks.