Hi. I have 2x Express extending my network from my Extreme base station. One is the newer model (supports 'n') which is upstairs & the other is in the kitchen running airtunes with a speaker. However, if the express upstairs is turned off, the other stops working completely (orange blinking light). Surely its not extending the wifi from the other Express, as I did not think this was possible? Any help or suggestions would be great!