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 Calendars and the sixth month to have the length of 31 days. The eighth month in the old Roman calendar, October retained its name (from the Latin octÅ meaning eight) after January and February were inserted into the calendar that had originally been created by the Romans.