An unscheduled reboot happened last night (still figuring out why) and unfortunately WSX 1.1.0 again would not start up, no matter how much coaxing I did. Once again re-installation got the server started up again.
I then did a normal reboot, and this time WSX did start up OK. So it appears the problem is if WSX is not shut down cleanly. I cannot recall if previous reboots were clean or not, so it could be that a dirty reboot causes the issue.
I forgot to add that I am running RHEL 6.4