127.0.0.1 wp-admin being redirected means you have enabled cookie based brute force.
You should try access with secret word so {site_url}?{secret_word}=1 It will save cookie in your browser for 24 hrs the again after 24 hrs it will start redirect to 127.0.0.1 and you can access with {site_url}?{secret_word}=1 only.
If you have enabled and forgot the {secret_word} define AIOS_DISABLE_COOKIE_BRUTE_FORCE_PREVENTION true in wp-config.php and try access with wp-login.php ( or renamed login page) it will disable the cookie based brute force.
Once you logged in please go to WP Security > Brute force > Cookie based brute force prevention. there check secret_word and remove the defined constant.
If this is not the case or still issue let me know.