I have a problem with my computer. I have a broadband internet and i can ping my office computer from home computer [via internet]. But i cannot ping my home computer via router from outside my network [my office computer]. What may be the problem? I have a wireless router which provides internet to my laptop and three desktop computers. What may be the problem? Can anyone help me? Well i am pinging the right address that is the internet address and not the internal ip that is 192.168.1.3.