Alost every time after server restart, one of my specific ping sensor goes mad. Before restart it shows acceptable values like 0..10ms but sometimes, after I restarted the server hosting PRTG, this ping sensor shows values like 60...160ms.. I can quarantee that this is not true - I have alternative monitoring solution also set up, wich pings the same device and shows no anomalies. I'm suspicious, that after restart this specific ping sensor sends out queries at the same time as some other sensors are collecting data. I'm using some historical server to run PRTG.. Dell Poweredge 1850 with two Intel Xeon 3.2GHz and 8GB of RAM running on Windows 2008R2. How can I point out, that the problematic side is our server side not the device itself? System, Core and Probe healt are fine.. Only way to get rid of this problem is to play with specific sensor scanning interval. Any helpful ideas?