Hi. I am really knowledgable in technology but this has me stumped. I have a Cisco DDR2200 modem/router and all I want to do is forward some ports. I sign in and locate the Advanced-IPNetworking-VirtualServers. I then add my two external ports (25565), choose my protocol, and then enter my internal ports (25565). Then as my "server IP" (My local IP) is 192.168.1.70. I enter in all the correct details and select add. The ports just refuse to open no matter how many times I retry this. I have searched and searched on google until I finally had enough and came here.

Thanks in advance.