MyLAN is composed by a S8 (core switch) 40 switch (C & B series). All the switches are connected to S8 by 1G link. The LAN is monitored trought NetSight 220.127.116.11. Many times during the day, NenSigt shows "SNMP CONTACT LOST NO SNMP REPLY FROM DEVICE" The link goes DORMANT or DOWN. It takes about 2 minutes before the switch starts working again. It is a SNMP configuration problem? May I make some test or check S8 configuration? I need some help!!!!