I needed to expand device capability on my network. The new scope is 10.0.0.1-10.0.15.254 with subnet mask of 255.255.240.0.
Gateway address is 10.0.0.1. DHCP server (SERVER 2008R2) is 10.0.0.5. Router and server have been updated to new scope with correct subnet mask, etc. I can ping, for example, from 10.0.6.30 to 10.0.0.1 but have no Internet access unless the device has an address of 10.0.0.x.
Devices properly find their IP address reservations. What's wrong here?