Re: WordPress 2.6 – problems logging in
yes, that seems to fix it (at least for me):
from this thread: https://wordpress.org/support/topic/188964/page/2#post-803992
go into your wp-config.php
and add this line:
@define(‘ADMIN_COOKIE_PATH’, ‘/’);NOTE ‘/’ will be your blog path.
If you find that ‘/’ doesn’t work, make it ‘/blog/` or whatever your path is.