Having trouble connecting to a 200GH/S Avalon Gen2

I change my my subnet mask to 192.168.0.xxx

I Plug in the lan cable to the box

I power up the box

I go to internet explorer

I go to http://192.168.0.100


I can't connect to the box

IP scanner cannot find anything on the subnet mask





help!!!!


edit found it, subnet mask had been changed.