EllisLab/CodeIgniter — Issue #723: 2.1 After Upgrade, Sessions won't write using table & 'match useragent'
Author: danmatthews
Created: 2011-11-30 00:54:51+00:00
State: open

After upgrade to 2.1 i noticed that session data wasn't saving and therefore not logging me in.

After some playing in `application/config.php` i discovered that disabling `$config['sess_match_useragent']` (setting it to FALSE) allows my application to run smoothly again.

I notice that in the 2.1 download this is set to TRUE, but `match IP` is set to FALSE, disabling that doesn't seem to allow session writes again.

Is this a change in the table structure for sessions, or something a little deeper?