Memcache connects but doesn't respond to any command

Question

Setup: Apache; PHP 5.2.9; libevent (for memcached it\'s required) version 1.3; memcached server version 1.2.2 (tried 1.4.5, 1.4.0, now downgraded to 1.2.2,

Answer 1

I would talk to your sys sadmin. I think the there maybe a firewall involved.