We contacted Cisco. A failure.Cisco releases a new firmware but does not support this if the device has no warranty.We will not recommend Cisco again 

We have similar issue.We have 3 RV042 Routers and when we upgraded the 3rd device to last firmware (4.2.3.09) it fail.We have two devices upgraded good.We try to recover by TFTP Tool, by Firmware Rescue Utility we have similar issue.The issue is that...