Thanks for your help so far.
My network is 192.168.168.x
and it doesn't find anything connecting to 192.168.168.100 or 192.168.168.1
192.168.
168.100 ? Are you sure?

You need to be on a 192.168.1.x network to talk to 192.168.1.100, or just change your subnet from 255.255.255.0 to 255.255.0.0