Unstable ping on ONLY one device

Hello,

I have installed The Dude on my PC (Windows 7 Pro 64bits), and I configured the server to run as a service. All is “praticaly” working well. I have added my devices and a ping probe on all of them. All of them responde normaly, except one of them, that is a Rocket M5 (firmware version 5.62). Pinging from insinde The Dude to that Rocket M5 IP, loses a lot of packets, and the ones that is not lost, almost all of them is answered in <1ms, the problem is that The Dude loses too much packets and report the device as Down, but I have also a command prompt with ping command running on that same device IP, and it loses no packet. And even when The Dude report it down, I can access it throught Web and everything is ok.

I have that Rocket connected to a CRS125, I also left a ping window open on that CRS125 to that Rocket M5 IP, and no pings are lost. Only The Dude loses pings to that device, both when I use server agent to ping and local (even running Dude as admin).

I have other Rocket M5 on the network, with the same firmware version, and that problem doesn’t happen to them. Only this single one.

Have anyone experienced that? It doesn’t seems to be a network problem, but a The Dude problem.