Some routers & modems work best with port forwarding if you have a static local IP. Manually set your network interface card (NIC) to use a static ip address. You can also download my FREE Simple Static IP tool to set it for you.
Today is October 14, 2015 so that means that 180 days before today would be April 17, 2015.
There have been 7 working business days since the 1st of October 2015.