How is 192.168.30.100 to 192.168.30.200 _not_ within a 192.168.30.0/24 subnet?
Your subnet and available range are x.x.160.x while your pool range is x.x.168.x
Thank you -- PEBKAC issue.
I would have replied earlier, but the attachment of the image seemed to cause an issue.
I could see your reply if I wasn't logged in, but when I logged in to reply all I could see was in integer error message about the upload.
No problem.
It is not a surprising mistake when viewing normally sized fonts on screen.