I have a Apple airport extreme base station router i tried to update it's firmware to 7.3.2 today in between the installation it stopped due to some unknown issue ( VISTA 32 Bit). Since then I am having an orange light flashing slowly on the base. when i start the airport utility it shows my base there with an orange light , when i try to configure it gives me some error -4. It does not even let me go to any configuration Manual or using the wizard. Can any one suggest if the firmware is corrupted, how can i undo the process. ( I have power cycled the router, hard reset it as well ) it seem not to have helped at all. The router never gave me an issue for over 8 months. I would appreciate any help.