Hi all.. I have a strange problem with my device. I have an USB device cable connected my device and the host pc. The USB device cable works an ethernet interface, I can do ping and telnet to the device from the host PC..
But now when I keep a continuous ping to the device from the host PC. I see sometimes there a drop in the ping. When I find the drop in packet, I did a dmesg in the device I could find that the interface is going down and up for a moment..
Can anyone help how to debug this problem, This is very urgent to solve..

Thanks in advance