this holds for ESXi 3.5, virtualbox, and citrix Xenserver:
I keep having trouble testing connectivity, getting DHCP, and saving local network settings - all during install.
I am confused... and it keeps me from getting past install. I watch it sit at "please wait, saving internal network settings" for 5 minutes or so, then error message.
EDIT: if I close the browser, and restart it, I can use it, and it seems OK. just a problem in the install.