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The problem solved! as YO said I was faced to problem because of TimeService bad configuration which I made.<BR>
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It seems that "timerserver" works by getting IP address of hostname. In my special case my Zope instance is running (LISTEN) on another interface that its IP is different from hostname IP.<BR>
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So, simply I changed "site-packages/timerserver/TimerServer.py" :<BR>
#ip = socket.gethostbyname(socket.gethostname())<BR>
ip = '172.27.5.202'<BR>
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I know that it's not the final solution, but anyway ERP5 is working nice!<BR>
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Thanks for the hint from LiveCD's FAQ and of course you YO ;)<BR>
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