I'm not sure how many of my users face this issue, but up until now around 3 of my users told me that when they log in, they don't stay logged in for more than a minute or 2 (maximum 5 minutes). I have re-write rules in .htaccess to make sure that there is no switching between www. and non-www. What I think may be the issue here is storing sessions in cache? I'm using Memcached and have added the following to my config file: PHP: $config['cache']['cacheSessions'] = true; Can that be an issue? I'm on a vps with 1.5 GB dedicated RAM and 1.5 GB VSwap (if maybe the memory is running low to cache sessions properly?) We have anywhere between 70-85 registered members online (apart from 100's of guests), is sessions cache actually helping me or would I not notice a drop in performance even if I disable sessions cache?