Session timed out errors

[cobolicious]

Hello all,

We are having a rather crippling problem with our SMF install. The symptoms include:
-Unable to access Administration tools. Once password is submitted to access the Admin "Features and Options" an error appears: "Session verification failed. Please try logging out and back in again, and then try again."
-Unable to reply or start new topics. Error message: "Your session timed out while posting. Please try to re-submit your message."
-Unable to logout of current user (without a browser reset) error: "Session verification failed. Please try logging out and back in again, and then try again."


Not sure when this issue started (I inherited this project).

Configuration:
OS X 10.9.4  Server
SMF 2.0.2
PHP 5.4.24
PostgrSQL 9.2.4

I did check against the SMF recommended settings for PHP and PpstgreSQL and they compare as follows:

Recommended :: Actual
max_input_time set to a value of at least 30 :: max_input_time = 60
memory_limit set to at least 8M :: memory_limit = 128M
max_execution_time set to at least 15 :: max_execution_time = 30
register_globals set to Off :: register_globals = Off
session.use_trans_sid set to Off :: session.use_trans_sid = 0
safe mode disabled :: safe mode = off
BCMath library enabled :: bcmath.scale = 0     <----- Not sure about this one ?
PostgreSQL 8.3.3 or higher if using PostgreSQL. :: PostgreSQL Version 9.2.4


Any ideas on where to look next would be greatly appreciated.
Thank you.

[kat]

Just a hunch... In Maintenance>Cookies and Sessions>Server settings, in the SMF admin section, you'll see these:

Enable local storage of cookies
(SSI won't work well with this on.)

Use subdomain independent cookies
(turn off local cookies first!)

I'd expect the second one to be selected. Either way, one should be selected, the other not.

Try switching them around.