updated 11:35 am EDT, Wed September 10, 2008
iTunes 8 & AirPort Express
Apple's newly-released iTunes 8 may be causing problems for owners of AirPort Express routers, complaints on Apple forums suggest. Accounts mention the software displaying error codes when trying to use the AirTunes option, used to stream music wirelessly to remote speakers. Once an Express is connected to distant speakers, iTunes normally allows users to pick a particular set of audio outputs.
Instead however, some users are seeing either an "-15000" or "-3526" error, where previously AirTunes functioned properly. The latter appears to be connected to firewall settings, and may be fixed by either giving iTunes access permissions, or disabling a firewall entirely. Apple states that the -15000 error may be triggerable by outdated Express firmware (prior to v6.3), but not all users are reporting success after updating. Some suggest unblocking UDP traffic, once again accessed through the Firewall pane.