We have 2 ESXi 4.1 hosts that randomly (about once a month) completely drop off the network. All guests are inaccessible and the management network is inaccessible. You cannot ping any IP address or log into anything. When you access the console, everything looks a-ok. Using the console tools, pinging out onto the network fails as well. After restarting, everything is fine until the next failure. Both boxes are failing the same way.
Both are HP Proliant DL360p Gen8 servers.
I'm having some difficulty troubleshooting this as well as VMWare's documentation points to log files that I can't on my system for troubleshooting. I have exported the log files from the vSphere client and everything seems to be from after the last restart, so it's not much help.
Any assistance with diagnosing (or if you already know about this problem) would be greatly appreciated.
