A recent Apple support bulletin provided to service providers in the US and Canada notes that a “small number” of AirPort base stations with serial numbers PW940XXXXXXX to PW952XXXXXX may exhibit a problem that not even a hard reset can fix. The symptoms include “continuously blinking status lights, no response to wired or wireless connections, and resetting every few seconds.” No information regarding the issue is available on the Web, although owners of defective base stations can call Apple to receive a replacement, even if the product is out of warranty. Customers in the US should call 1-800-APL-CARE, while those in Canada should dial 1-800-263-3394.