Git: Issue with Git Push (HTTP: Failed to Auth)
The Git credential cache runs a daemon process which caches your credentials in memory and hands them out on demand. So killing your git-credential-cache--daemon process throws all these away and results in re-prompting you for your password if you continue to use this as the cache.helper option.
You could also disable use of the Git credential cache using git config --global --unset credential.helper. Then reset this, and you would continue to have the cached credentials available for other repositories (if any). You may also need to do git config --system --unset credential.helper if this has been set in the system configuration file (for example, Git for Windows 2).
On Windows you might be better off using the manager helper (git config --global credential.helper manager). This stores your credentials in the Windows credential store which has a Control Panel interface where you can delete or edit your stored credentials. With this store, your details are secured by your Windows login and can persist over multiple sessions. The manager helper included in Git for Windows 2.x has replaced the earlier wincred helper that was added in Git for Windows 18.104.22.168. A similar helper called winstore is also available online and was used with GitExtensions as it offers a more GUI driven interface. The manager helper offers the same GUI interface as winstore.
Open User Accounts by clicking the Start button Picture of the Start button, clicking Control Panel, clicking User Accounts and Family Safety (or clicking User Accounts, if you are connected to a network domain), and then clicking User Accounts. In the left pane, click Manage your credentials.