My old Airport Express (1264) drives me crazy and my issues may relate to those discussed here.
As far as I remember, I never managed to combine both airplay & wifi but never had a real need for this. Now, I want to use airfoil to airplay from Deezer and need both.
I've played around a couple of hours without any success + somehow unpredictable behaviours.
I've disactivated the Wifi on my modem/router (Proximus bbbox 2); changed (when I could view the airport in the utility) the airport mode to/from bridge / NAT & DHCP and even updated the firmware.
Last time I managed to view the airport in the utility, I tried to switch it back to DHCP & NAT; the update took quite a while and ended with "an error occurred while updating the config". Since then, I did not manage to connect with the airport (tried plugging / unplugging the modem cable / activating/ deactiving wifi. Not sure if I tried all combinations since I got a bit bored
The only way to manage to get the green light on the airplay is to disactivate the modem/router wifi and plugging the modem cable in the airport.
Until recently, I managed to airplay on the station (but loosing internet) with the modem cable unplugged; this worked though the station led was amber
Thanks for your help and tips