All,
Upgraded from 5.5u2 to 6.0u1b and when tools has been upgraded to 10.x, it seems the guest o/s lose their DHCP IP address randomly, although it is 2 vm's out of 100 over the course of a day (vdi linked clones in this case), the guest resorts to 169.254.x.x address, a reset of the vm fixes this, however has anyone else seen this?
I also noticed this with a 2012r2 veeam proxy server, when changed to static all is well.