Why can't I log in to Blogger even with the correct username and password?

Several issues could prevent login despite correct credentials. First, clear your browser's cache and cookies. Second, ensure your browser is up-to-date. Third, temporarily disable browser extensions, as some can interfere with website functionality. Fourth, check if there's a known Blogger service outage (check the Google Workspace Status Dashboard). Finally, if you have 2-Step Verification enabled, ensure you're using the correct method to verify.