Hi,
Sorry for the delay.
On this page it tells you the default Access Info for the Aztech
http://portforward.com/english/routers/portforwarding/Aztech/DSL600E/AIMTalk.htm
You need the info nearer the top.
Just under the bit the Web Browser header pic is the IP and then the User ID and Password.
The default IP shows as 192.168.2.1 which, however, is different from the Pics
You would type this into your Web Browser like you would apple.com
If the 192.168.2.1 does not work use 10.0.0.138 (this is a standard IP based on the pic below showing the LAN IP starting at 10.0.0.1)
The User ID and Password are both "admin"
First can you just confirm Access ?
I have read some discussions Boards that suggest some IPs send this out with Restricted access and in Bridge Mode (Not routing).
I need to know if it is Routing as two Routing Devices on the LAN can be an issue.
If your devices set up pages look like the Link I have sent you to can you also confirm whether UPnP is Enabled ?
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Linksys.
For this one
http://portforward.com/english/routers/portforwarding/Linksys/WRT54GS/AIMTalk.htm the IP is 192.16.1.1
The User ID is blank and the Password is "admin"
The first Linksys Pic on the site shows only the top part of the Status page.
Can you tell me if it looks different from the pic. (i.e is it set to Automatic DHCP ?)
The bottom part of the Page tells you if the LAN side (to computers) is doing DHCP (Issuing IPs).
Can you confirm it is doing this ?
In System Preferences > Network > Advanced Button (s you are WiFi) > TCP/IP tab you should see that your computer is getting 192.1.68.1.100 (most likely - but at least the first three parts will be the same)
Can you confirm this please ?
The Mac can only display one IP here.
It may well be getting one from the Modem as well as the Linksys will pass an Routing info from there on to any computers.
Next go to the Administration Page (tab across the top) and tell me if UPnP is enabled here ?
Enabled it if it is Not (Save Settings).
Next go to the Wireless page.
In here should be options to change the channel it is using.
Just tell me if this is still set at a channel in th e middle of the range ?
You may be getting interference form other nearby networks.
In Security turn Off the Firewall and change the Setting for Responding to Anonymous Requests (ping Blocking - iChat sends a Ping and needs this Allowed).
You may not have a firewall depending on which version of the WRT54GS you have.
Summary.
Most DSL modem route.
Confirm yours is by trying to Access it.
Confirm whether it is doing UPnP or not. (UPnP is the simplest method of Opening the ports)
The Linksys does not do UPnP by default so Enable it.
The Wireless channel may be getting interference but I want to know where we are starting from.
The Security page Block Pings (Anonymous Requests from the WAN port) and needs to allow these for iChat.
If it has a Firewall in here then this can interfere with iChat Video Chats.
8:16 PM Sunday; July 4, 2010
Please, if posting Logs, do not post any Log info after the line "Binary Images for iChat"