are you running windows 7 or windows 8 on your pc. if you are download
angry ip windows
http://angryip.org/download/#windows
if mac download http://angryip.org/download/#mac
it will show all the devices.
I happen to have a mac and I have :
ipscanner home see my screenshot of gear
take a look all my gear has 192.168.0.?
my main router uses 192.168. 0 .1
if your router is a 0 and you miner is a 0 it will show
if your router is a 1 and your miner is a 1 it will show
if your router is a 0 and your miner is a 1 you need to fix this.
if your router is a 1 and your miner is a 0 you need to fix this.
so find out your router's number 0 or 1 there are other ones but that is something else