Do you have a Trisquel live CD/media handy? I'd suggest booting from it and
testing with it. If you can get to that point I'd probably try the following.
1. Unplug the ethernet cable
2. Plug the USB G adapter in
3. Using the network applet in the lower right select the access point you
would like to connect to
Does it say it is connected?
4. Open up your web browser
5. Type in https://www.affinityfcu.org/ and hit enter
Did a website come up? If so the USB G adapter works. There is probably
something wrong with your Trisquel configuration.
If not I'd try typing in 192.168.1.1 and see if you can access your network
router configuration page (it appears thats what it is based on the above
info although it could be any of: 192.168.1.100, 192.168.0.1, 192.168.0.100,
192.168.2.1, 192.168.2.100, and possibly something else, although these are
generally the standard ones for most home routers)
Now if it didn't work (the web site) then there is probably an issue with
your router/network setup. It might be worth resetting the connection. Turn
the modem off, turn the router off, turn the modem back on, wait 60 seconds,
turn the router back on.
It could be the router is setup oddly like DHCP is setup to issue IP
addresses only. And you need to set the DNS manually in Trisquel. If I
understood what you did in MS Windows though it sounds like the router is
setup to issue IP addresses and DNS info. However the fact you need to
sometimes go in and change stuff on MS Windows suggests something else is
incorrectly configured. Maybe you have two routers that are both trying to
issue DHCP addresses or something similar.
If you open a terminal I wouldn't mind seeing the output of the following:
iwconfig
ifconfig -a
* after you are connected, and doing so from the live media/CD