my custemer has a WISP with 1200 user and has ccr1072-1g-8s+ connected to multiple towers, each tower is connected to the router as PPPOE . the problem accures when the elecricity is cut off on a certain area and all users in that area are dissconnected at the same time the router is hanging for a certain time.
when he went to the router location and unplug a random cable of one of the towers, the router hang for approxmetly 20 seconds , all the leds are off then after 20s its works normally.
he had a 1036 router and he think the problem was because it is overloaded then he replace it with 1072 and the problem is still.
whats the problem with the routers?
thank u for your time