ReadyNas 214 NIC Heating issue - Is there any solution for this

ReadyNas 214 NIC Heating issue - Network card is getting disabled and cannot access NAS.. This was not a problem before and it was running fine.. but after recent updates the issue is popping up more.. 

Even reverting to old firmware did not make any difference. 

Is there anything we can do within OS to fix this issue.. or there is no more support planned for this issue.