I have uninstalled and reinstalled mongo (3.0.1), being sure i accepted the network access on windows 8, and yet i still have the same issue of \"waiting on 27017\".
You Keep your first screen(which you are facing issue) open as it is.
Now open one more screen and go inside mongodb folder.
now execute ./bin/mongod. and you can its connected as below .
2016-11-04T13:44:02.414+0800 I NETWORK [initandlisten] waiting for connections on port 27017
2016-11-04T13:50:26.990+0800 I NETWORK [initandlisten] connection accepted from 127.0.0.1:51541 #1 (1 connection now open)