Rules with "Established" option, not working

[sami Sayko <saykosami () yahoo com>]

Hi,

I'm using snort 2.9.5 (Windows), and official ET and snort rules.
I noticed a strange thing with the official rules :
The rules with established option never triggered, but if I remove the "established" option, all things we'll be ok !!!!

I'm using a normal configuration (default). Except that my web server is behind a load balancer.

Can someone help me to find a solution ?

Thanks  

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