Hi 8233 is a good choice for a router
Here's your solution
1. These steps are to be performed strictly from a computer which is wired.
2.Even if you are using your mac book turn of the airport and connect it via a cable.
3. Open your router setup page by typing in 192.168.2.1 on your browser tab or typing i
http://192.168.2.1 in the run window
4.An rsp will open and on the top right hand corner of the screen it will say Internet status:: connected
5.On the left hand side change you"ll see channell under wireless
6. Select it and change it to 6 or 11 for best signal strength
7.Now to the most important segment 8233 has a piculiar issue with its extra strong security
8.On the left hand side under wireless you"ll will see an option called wi-fi protected setup
9.Select it and turn it off reboot router and wow the problem should definately be resolved .
Then turn on airport and go wireless along with your wife.
10. You will still be secure with your data through security option on your router (wep or wpa )whatever you use .
Thank you and just let me know if it worked or not