Instruction: Answer the given question using the supporting document.

Input:
Question: Why can't I access my USB hard drive? It says 'not found' despite being plugged in.
Document: Has worked well as a repeater but not as a host for shared drive. It's very hard if not impossible to access the USB stick as a shared drive.
I purchased (Dec 2012) the Amped Wireless SR20000G for two reasons: 1) Extend the range of my current router. 2) Utilize the USB port to add an external hard drive to wirelessly back up three Mac Book Pro laptops using Time Machine.Following the instructions, setup worked perfectly. Loaded the latest firmware, etc. For #1, the range expanded perfectly. I can now access my router with full strength throughout my entire house (2nd floor, etc.)
It states "USB Storage Support:Attach a USB storage device, such as an external hard drive or flash drive, to share at home or in the office with other networked computers." I could have made a better decision knowing that this does not work with Mac formatted drives.Amped Wireless Support was great. Very responsive and willing to help.
Their response: "We are looking in to these issues. It seems to happen time to time with a 3TB drive. At the moment the USB port seems to be working so it must be an incompatibility with the drive. We are trying to address this issue in a future update. "So I switched out the Seagate 3 TB hard drive with a HP 1.5 TB hard drive I had hooked up to my iMac. Again the SR20000G was unable to connect to the HP drive.
I made sure the placement of the SR20000G was above the router in the basement to maintain a 70% signal strength between the router and the SR20000G as specified in the instructions.For #2, I hooked up a Seagate Backup Plus 3 TB hard drive to the SR20000G. The hard drive was not found by the SR20000G. It would not connect. I hooked up a 4GB thumb drive to the SR20000G just to make sure the USB port was working and the 4GB thumb drive was found and connected right away.
(I did not spend much time trying to connect to the drive). The issue I have now is that the SR20000G will only connect to a Windows formatted hard drive (Fat 32 or NTFS) and Time Machine (back up utility on the Mac) will only recognize a hard drive formatted as a Mac drive (Mac OS Extended). So one of my main reasons for purchasing the SR20000G to perform wireless backups for my Mac Book Pro's does not work.
This really boosted the range of my WiFi and the ability to plug in up to 5 ethernet cables to devices from it helped a lot since I am not close to the router. It also allows me to hook up my 2 TB external hard drive and use it as a network storage device that everyone connected to the wireless network can use or I could set a password so only certain people can use it. Glad I got this and not one of the less expensive units.
I had to use my "chromebook" since my computer was still giving me a hard time, but he patiently directed me step by step.I'm so pleased I purchased this product (Amped Wireless SR-10000) from Amazon and Amped due to their superior customer support.As a result of his support, the product has been better placed and I'm now receiving maximum benefit! My guests are now able to access via my Vizio TV all the internet apps on the tv!
After 2 hours and 2 calls with Tech Support, it's evident that this repeater is a dud. At end of the last call, Tech tells me that it's normal for the repeater to bog down internet speed by 50% and that I need to also purchase an Amped Access Point and hard wire with 25 foot ethernet cord to my router for signal to work. Upsell city!The guy actually told me that my home is too big!!! 4,200 sqft. and no guilt trip.
On Netgear's it shows you the attached list, and you select which one to add to the access list without having to manually enter the address making it quite easy and error-proof. One plus though with this extender is you can set up a separate user access list for each band which you can't do on the Netgear extender. Also firmware updates on this extender require a computer being attached (couldn't do it with my iPad) where you have downloaded the new firmware to transfer over to the extender.
Answer: It may be plugged in but it needs to be configured in  setup.ampedwireless.com.  Once into the menu, select "More Settings".  There you will see an option for "USB storage" and under that there are two choices: "Local Sharing" and FTP Server".  Select "Local Sharing".  There make sure the drive is recognized.  If it is them make sure the workgroup matches your windows workgroup.  If you don"t know what workgroup to assign then see : http://windows.microsoft.com/en-us/windows-vista/join-or-create-a-workgroupI hope this helps.