Last week, my site started having some severe problems when logging in. After quite a bit of debugging, I figured out that after I login, my session is being destroyed if I visit a page that is requires you to be logged in. A print_r on the session just shows an empty array. But, if I do it on the homepage; I get all of my session info, but it still acts as if I'm not logged in; where I get this in the session:
[Security] => Array
[Message] => Array
[message] => Please choose an authentication method and enter your credentials to access the CMS.
[type] => warning
This does not happen in the admin, however. The admin still works perfectly fine. I have made no code changes in the past month, and this just started happening last week. My host did upgrade some PHP stuff on August 20th, but claim that they didn't change any other settings.
Has anybody run into this before or have any ideas?