SOLARIS 8 machine hangs on network.

i have put solaris 8 machine on network. After half or one hour it doesnt ping from other network devices.Though i already commented autoshutdown in power.conf.Why it gets hanged.?Pls help
[223 byte] By [gauravvasudevaa] at [2007-11-26 18:56:39]
# 1
Hello,How did you enter the entry in /etc/power.conf file...you just make atally with the foolowing document that i am sending the link http://docs.sun.com/app/docs/doc/802-2608/6i6ifnt10?a=view
nn06a at 2007-7-9 20:35:37 > top of Java-index,Solaris Operating System,Solaris 10 Features...
# 2
My solution:1) touch /noautoshutdown2) pkgrm the power management packages(that would be: SUNWpmowu, SUNWpmowm, SUNWpmowr, SUNWpmux, SUNWpmu, SUNWpmr )
WRWindsora at 2007-7-9 20:35:37 > top of Java-index,Solaris Operating System,Solaris 10 Features...