Since the update to 5.1.1 I can no longer log in to any of my WP sites.

I have cleared my cookies and cache, deactivated the plugins, checked to see if it was the theme, talked to my host (to no avail).

On wp-admin I get a 404 page. with an unsuccessful redirect to wp-login.php

wp-login.php?redirect_to=http%3A%2F%2Frealsavvyblogger.com%2Fwp-admin%2F&reauth=1

On wp-login.php I get a too many redirects message

redirected you too many times. ERR_TOO_MANY_REDIRECTS

Any ideas. It’s happening on 3 sites.

Thank you.

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