After working flawlessly almost a year SG3210X-M2 switch went offline. Power and 2.5G ports status green, but no activity. Sys led not flashing. Reboot or reset does not help. Bought from Provantage s

I have the SG3210X-M2 switch. Not the SG3210XHP-M2 switch, but the SG3210X-M2 switch with no PoE ports. One issue I've faced is that any device with an unknown/new MAC address connected to any of the