Netflow Analyzer auto shut down

Netflow Analyzer auto shut down

Hi, I met a weird problem, which is my netflow analyzer will auto shut down. my OS is windows server 2003 R2. Actually, there are two different shut down situation, the first one is Analyzer suddenly can't catch any data. And status of interface show "down". The second one is all application is out of service. I can't even open netflow analyzer web interface from my IE. Please help me to figure if there is any compatible issue with Netflow Analyzer and Windows 2003 enterprise edition (with very clean environment, the first install application is Netflow analyzer).

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