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.
October is the tenth month of the year in the Julian and Gregorian calendar and was the eighth month in the Roman calendar. It is commonly linked with the autumn season in the Northern Hemisphere and spring in the Southern Hemisphere. Its seasonal equivalent is April in the Northern Hemisphere.