I have a very small network using older NetGear FSM726 switches. Very basic. Whenever a specific location loses power, it causes other buildings to lose their network resources. At a central location there are 2 NetGear switches with the gigabit fiber modules (2 each). Each of the fiber ports go to location 1 (Admin),2 (Streets),3 (Parks),4 (Golf). 1 & 2 are on the same switch. 3 and 4 are on the other switch and the two switches are uplinked with cable. When #2 switch goes down, Locations 3, 4 and the central location cannot get to 1-Admin for mail, internet etc. There is nothing programmed on the switch. It is just one big switched environment connected by fiber. What could possibly explain why one switch dropping can affect the rest? Is there a setting on the switch? It's like the chain is broken. No vlans, no extra confg.