Hi @Gherca,Marius,
Welcome to Microsoft Q&A!
Please go to Control Panel > User Accounts > Credential Manager > Windows Credentials > remove the relevant credentials.
Then, restart VS and check it again.
Besides, you can go to Visual Studio's Options dialog (Tools > Options…) > Environment > Accounts tab > select System web browser from the Add and reauthenticate accounts using: dropdown.
Sincerely,
Anna
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