Cisco SG350 stop working blinking ports conectect each 30 seconds

[Ruben Vega]

Hi

i have serverals cisco SG350 and all falling. Stop working and system light becomes blinking and ports with cable blink each 30 seconds. 

i have factory default and do the same.

Its happening i almost all sg350 we have.

Any idea?

[Kasun Bandara]

what you mean by falling? is it stopping traffic? normally system light blinks when device dont have IP addresses assigned. you need DHCP server or apply IP address manually for each device.

[Ruben Vega]

it means its not working. Light the ports 2 seconds and the do not light. 30 seconds later light. And all the time has this way

thanks

[balaji.bandi]

what is the firmware running, for testing 1 device to latest firmware and test.

is all these device connected in Layer 2 network ? what logs you see on the console ?