(PC) We couldn't sign you in to xbox live 0x80072f8f

Thank you!

I did not advise you that because it is the last option to consider. So, I wanted to exhaust all options before

But I'm glad to know that everything works now as expected!

Take care and happy gaming!

That's odd. May I know if you are able to try with a different wifi network?
For example sharing mobile data via wifi hotspot and connect your PC in that way

If not, try creating a new local administrator user in your PC and try from there:
https://support.microsoft.com/en-us/windows/cre...

And, if you try using a different account, the issue persists. Right?

In the meantime, please tell me what's saying below/next to NAT type:

Open Xbox Console Companion app (if you don't have it you can download it from the store) > Settings > Network

If you try creating a new local administrator user in your PC, the issue persists or not?

https://support.microsoft.com/en-us/windows/cre...

If yes, I can advise you another two things:

1. Run the SFC tool to find and repair possible system corruptions

https://answers.microsoft.com/en-us/windows/for...

2. If the tool above doesn't work, the next step will be perform an in-place upgrade for your system (don't worry, your content will remain)

https://answers.microsoft.com/en-us/windows/for...

If you're on Windows 10 steps are the same, you just need to download windows 10 ISO

I have tried two more steps but it still doesn't work.

Hi and thanks for reaching Microsoft Xbox gamer's community. My name is Josef.

I'm an Independent Advisor and a Microsoft Xbox user like you.

Hope you're doing great today despite this จินต์ าสธรรมบุตร

Please try this:

Press Windows button and type Services

On Services App from the list of results, press right-click and run it as administrator

Scroll to the bottom and find the following services:

IP Helper

Xbox Live Auth Manager

Xbox Live Game Save

Xbox Live Networking Service

Gaming Services

And do this with each of the services listed above:

Right-click over the service and select Properties.

Find the Startup type section and make sure it’s set to Automatic (if not, change it to automatic)

If the service isn’t started, click Start to start the services

Restart your PC and try again

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If maybe that doesn't work do this:

Press Windows + X, then click on Windows Powershell (Administrator)

Then type or copy/paste this command and press enter:

Get-appxpackage Microsoft.XboxIdentityProvider | Remove-AppxPackage

Restart your PC and install the recently deleted app:

https://apps.microsoft.com/store/detail/xbox-id...

Finally go to Windows Settings > Apps and Features > Xbox app > Reset and Repair, then restart your PC and give it a new try.

If that doesn't work please also try these tutorials:

https://support.microsoft.com/en-us/windows/fix...

https://support.microsoft.com/en-us/account-bil...

Or try this (RainingRoses response):

"Try the following options for Windows 10/11:

1. Go to Credential Manager (https://support.microsoft.com/windows/accessing...) > Windows Credentials (not the Web option), select XblGrts|DeviceKey and remove.

2. Go to Settings > Accounts > Email & accounts. Select your account with the issue and verify that the ‘Apps need to ask me to use this account’ setting is enabled. This would especially help if you have multiple accounts as you would have the option to choose the correct account on startup, but you can always change it back to the automatic option if you prefer. You can also try to remove the account from here and re-add it later.

3. Follow this file path: C:\Users\[Your Username]AppData\Local\Packages\Microsoft.XboxIdentityProvider_cw5n1h2txyewy\AC\TokenBroker

Delete the Accounts and Cache folders, which will be deleted from the Xbox Identity Provider

Note that the highlighted code in this file path depends on your system so may vary.

If you don’t see a particular folder, then confirm there’s no search filters applied and select ‘show hidden items’, or you can just search for the folder in the search bar.

Restart your PC after trying the above steps, so that these properly take effect next time you sign in. It may also help to then reset and repair and/or uninstall and reinstall the Xbox apps where this error occurs."

Source: https://answers.microsoft.com/en-us/xbox/forum/...