Can't forward ports with Cisco EPC3925 and Airport Express and Extreme!

Hello,

I have very big problem, I've been trying for whole day to forward ports for steam and I just can't I tried everything, I have Cisco EPC3925 ( Its main thing I think its router - right ? ) Then I have connected Airport Express to it with ethernet cable ( It's working as DHCP and NAT I have double nat issue in my airport program I don't know what is this ) also Airport Express is set to create a Wi-Fi network, then I have connected Airport Extreme with Wi-fi and set to exceed wi-fi network and can't change anything in it , can't open ports etc. etc. MY COMPUTER is connected to Airport Extreme ( 2nd device ) with cable ! So Im not connecting my computer to internet with wi-fi

Also I've been looking in Airport Express ( the 1st device ) and I saw that there I can open ports , but I opened them and nothing happend ... ports are still closed... Also I've set my computer ip to static , tried everything . And portforward.com site isn't helpfull . Also I tried to set Airport Express ( 1st device ) in bridge mode and nothing happend ( after I set it to bridge mode I can't open ports in airport program )

Please is there anyone that can Help me with this ????

Also I want to say that somehow I dont know how, but I managed to open ports in the past

I need to open all necessary ports because If I can't open them - I can't make a server and people can't join . I really really need help I've spent whole today's saturday to get it to work and this won't work !

Windows 7

Posted on Aug 18, 2013 9:10 AM

16 replies

Tesserax

Level 10

158,202 points

Aug 20, 2013 3:25 PM in response to bolo822

Ok, thanks. Now I understand your networking equipment perfectly.

Let's start by verifying that your AirPort Express is set up properly. I would like for you to power down both the Express and the Extreme.

Perform a "factory default" reset on your Express. After it restarts, it will broadcast an unsecured wireless network with a network name of something like: Apple Network NNNNNN. Disconnect the Extreme from the Express and temporarily connect your PC, using an Ethernet cable, instead. Once connected use the AirPort Utility on the PC to reconfigure the Express as a bridge.

AirPort Utility > Select the Express > Manual Setup > Internet > Internet Connection > Connect Using: Ethernet and Connection Sharing: Off (Bridge Mode)
Click Update and allow the Express to restart

Leave the PC connected by Ethernet and verify:

The PC can gain Internet access.
The Cisco router can "see" the PC.

Please post back your results.

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Can't forward ports with Cisco EPC3925 and Airport Express and Extreme!