Is the AE in bridge or router mode.. if it is in router mode is it having double NAT issues??
There is no way to port forward with double NAT.
i use my local ip address and use the right ports, but no one else can connect to my game.
From outside the network you must use your public not local IP.
The easiest thing to do is for you to post the actual screenshots of your port forwards..
And also do a proof that the TC is not double NAT.. ie open a teminal (or dos windows) and type traceroute (tracert) 8.8.8.8
That will then show how many local NAT you pass through. Here is mine.. only one NAT router.
traceroute 8.8.8.8
traceroute to 8.8.8.8 (8.8.8.8), 64 hops max, 52 byte packets
1 gargoyle (192.168.2.254) 1.157 ms 3.420 ms 0.600 ms
2 adsl01.mel01.eftel.com (203.123.68.32) 76.762 ms 18.560 ms 18.713 ms
3 tge0-0-0-303.core0.mel.dft.com.au (203.123.69.105) 18.619 ms 23.826 ms 19.108 ms
4 203.123.69.134 (203.123.69.134) 48.875 ms 19.872 ms 19.835 ms
5 157.2.148.122.network.m2core.net.au (122.148.2.157) 33.807 ms 34.837 ms
be1-v551.bsr02.masceqx.nsw.m2core.net.au (122.148.4.178) 34.629 ms
6 be1-v551.bsr02.masceqx.nsw.m2core.net.au (122.148.4.178) 70.312 ms
google-gw.bsr02.masceqx.nsw.m2core.net.au (122.148.2.154) 46.803 ms 32.387 ms
7 216.239.40.223 (216.239.40.223) 33.574 ms
74.125.37.167 (74.125.37.167) 78.761 ms
google-gw.bsr02.masceqx.nsw.m2core.net.au (122.148.2.154) 61.396 ms
8 216.239.41.7 (216.239.41.7) 42.683 ms
216.239.40.223 (216.239.40.223) 33.009 ms
216.239.41.77 (216.239.41.77) 43.122 ms
9 google-public-dns-a.google.com (8.8.8.8) 39.743 ms
216.239.40.255 (216.239.40.255) 49.540 ms
google-public-dns-a.google.com (8.8.8.8) 80.905 ms
Did you follow precisely the rules here??
AirPort - Port Mapping Basics using AirPort Utility v6.x