LTE v11 and Without Changing IP Address Configuration
After some messing about I have finally managed to figure out how to get LTM-VE 11 working on a single IP Range. I found the documentation to be incorrect, and after restoring back to factory settings, you need to use the configuration wizard to use the existing internal VLAN when prompted to configure the external VLAN. Once that is done it works. Much simplier than 10.x where you have to create a VLAN Group.
I hope this helps, as I have been banging my head for the past 2 days trying to get this to work using the documentation, but I understand it is a new product and it has been a good learning exercise for a noobie.