Hi doemaas,

I've been experimenting a lot and I cannot link this to any one specific scenario. I've been using both Shared and Bridged operating modes, multiple interfaces, just a single interface. The bug seems to bite regardless of my configuration. The trigger point for me seems to be when my host goes to sleep. I can virtually guarantee that if I let this happen with guests running, when I come back and wake the machine, vmnet-natd will be at 100%. Whilst that is a reliable trigger, it is not the only one. Sometimes, for no reason, it will happen. I can be actively using just a single guest, with a single network interface, in either Bridged or Share mode and vmnet-natd will just suddenly jump to 100%.

Every time I see this behaviour, the network connection within the guest VM will drop. The only solution is a complete restart of Fusion: suspend each guest OS, close their visor windows, quit Fusion itself, restart, re-open the guests, resume operation. It only takes a few minutes, but it is very, VERY tedious.