Cisco SG300-20 LAN Ports are not working (No LED is blinking)

[zainulabdein]

Hello Everyone.

I am facing a strange issue with my Cisco SG300-20 switch. It was connected with our Local area network and everything was working fine since last 2 months. But suddenly today all the devices connected to this switch were disconnected. I checked the switch and all of its LAN ports are somehow disabled. I reset the switch using the reset button but during reset no LED is blinking on LAN Ports and reset is also not helping. I connected the switch using console cable and it is connecting but i am still unable to connect any thing using LAN Ports. Is it the Hardware issue or anybody can help me with a software solution? 

Hoping to get the problem fixed

[balaji.bandi]

what is the Logs shows any obnormal ?

do you see any latest firmware available to install ?

this effecting your network, suggest to contact SMB TAC

https://www.cisco.com/c/en/us/support/web/tsd-cisco-small-business-support-center-contacts.html

[zainulabdein]

I am unable to access web interface as LAN ports are not working. Where to check for firmware update? and how can i install firmware update on my switch without LAN ports & web interface / GUI

[Jitendra Kumar]

If you connected with the console can you please share the show run and show IP interface brief output here.

OR have you raised RMA for this?