hi Pete. Well, yes I tried some other types... (ICMP Raw Socket & UDP). UDP seemed to work, although the ping times were much higher and seemed to fluctuate much more-- I imagine some core routers might be programmed to deprioritize this type of traffic. ICMP raw socket results were similar to ICMP.DLL results (problematic).
Strangely, a reboot seems to have cleared the issue, perhaps temporarily. I am currently running on the built in gigabit ethernet controller of my Nvidia nforce4 motherboard. I did some searching and came up with the following interesting links:
http://www.dslreports.com/forum/remark,15398295 http://www.dfi-street.com/forum/showthread.php?t=34151http://forums.nvidia.com/index.php?showtopic=4978&st=80So it seems there may not be a current working fix for this, and not sure if its a cpu errata in the X2/opteron dual cores or a problem with the nvidia Nforce4 chipset/drivers. Anyway, I am going to switch to the other ethernet port which is controlled by a Marvell Yukon gigE chip. Will see if the results are different.
Very strange bug indeed......... <img src="/forums/images/graemlins/frown.gif" alt="" />
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