One host in my two-host cluster shows "Edit Settings (Unavailable)" when hovering over the grayed-out pencil icons.
Second host is fine.
No idea, Google wisdom eludes me.
EDIT:
- logged in as root (local authentication)
- client, Windows 7 64-bit, latest Flash, IE10, Chrome and Firefox latest versions.
- Have not modified any permissions; created two hosts, setup basic networking for Management Network.
- No issues modifying vSwitch via Windows client either directly to the host or vCenter.
Screenshot here: