This is a user to user forum. Thus you have no direct contact to Apple here. Seagate may have its own error code. That said, some Apple Airport Extreme base stations allow you to attach external hard drives to share wirelessly:
http://www.apple.com/airportextreme/features/harddrivesharing.html Only Apple's Time Capsule is definitely compatible with direct wireless hard drive backup unless stated by the manufacturer that it is known to be compatible with Apple's wireless.
This article can help troubleshoot errors in Mac OS X: