Problem with memcache - help needed

Hello folk! Currently, we use memcached as caching solution. We provide a link to 3 servers, a server-2x the Memcache daemon is started (2 different ports (depending 4GB) 192.168.0.1:11211 (4 GB) 192.168.0.1:11212 (4 GB) 192.168.0.2:11211 (700 MB) 192.168.0.3:11211 (700 MB) -> Php.ini: memcache.hash_strategy consistent = <-- $o_memcache = new Memcache (); $o_memcache->addServer ([SERVER], [PORT]); whenever a request comes the "connect" is no longer needed because Memcache established the connection automatically. We also tried $o_memcache=connect([SERVER], [PORT]); - same problem. About $o_memcache->get([KEY]), we check to see if the KEY is already set (KEY = UNIQUE!). In case of error returns GET "false". When TRUE, the content of the KEY will be shown - otherwise with $o_memcache->set([KEY], [CONTENT], MEMCACHE_COMPRESSED, mktime (date ( "H") +6)); will be saved for 6 hours. You should guess the KEY will be saved for the next 6 hours, but in this case, it will not. After about 2-3 minutes the KEY returns with GET "FALSE" again. ? We also tried this: - Memcache connection with addServer, connect and pconnect - 1 server as connection, multiple server (like listed above - as pool) ? Server stats: evictions = 0 cur_connections: ~50-100 ? Server settings: Apache 2.11 PHP 5.2.8 Memcache-Info by phpinfo(); Active persistent connections 4 Version 2.2.5 Revision $Revision: 1.111 $ memcache.allow_failover 1 1 memcache.chunk_size 8192 8192 memcache.default_port 11211 11211 memcache.default_timeout_ms 1000 1000 memcache.hash_function crc32 crc32 memcache.hash_strategy consistent consistent memcache.max_failover_attempts 20 20 ? Does anybody know this issue or solution(s) to fix this problem? Thanks for help. Jean Michel