Setting up a USB external Drive with USB Hub on Airport Extreme

I have successfully hooked up the Airport Extreme Base Station (n) with two printers using a USB Hub. I am now trying to hook up an external hard drive(acomdata 250 gb). When I plug the hard drive into the Hub and turn the drive on the Airport Extreme Base station resets to amber and flashes green for a second then resets to amber again and it keeps doing that until I shut the drive down. I have a Mac Book Pro and an iMac on the network as well as a HP pavilion a730n on the network. I am able to share files between the PC and the Macs; however I can't seem to share the external hard drive. I tested the external hard drive by hooking it up directly to the Mac book and after a few seconds it mounted correctly and I was able to read and write.
Any help with this would be greatly appreciated.
Thank you.
Nick

I have successfully hooked up the Airport Extreme
Base Station (n) with two printers using a USB Hub. I
am now trying to hook up an external hard
drive(acomdata 250 gb). When I plug the hard drive
into the Hub and turn the drive on the Airport
Extreme Base station resets to amber and flashes
green for a second then resets to amber again and it
keeps doing that until I shut the drive down. I have
a Mac Book Pro and an iMac on the network as well as
a HP pavilion a730n on the network. I am able to
share files between the PC and the Macs; however I
can't seem to share the external hard drive. I tested
the external hard drive by hooking it up directly to
the Mac book and after a few seconds it mounted
correctly and I was able to read and write.
Any help with this would be greatly appreciated.
Thank you.
Nick
What version of the AE firmware are you running? If you upgraded to 7.1, LOTS of people have discovered that Apple broke the USB connectivity for both disks and printers big time. With the 7.1 firmware version a few people can see the disks, but most people CANNOT see the printers.

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