@Kevin_Z This was never resolved. The hard drive is a Western Digital 5TB My Passport. It is formatted NTFS....

I reformatted my hard drive with a allocation unit size of 2048KB since i'm using it to store large video files. The USB port on the router no longer recognizes the drive. The hard drive works fine...

Has this been confirmed to be true? I have a AX3000 and I cannot get all my files to display using Media Sharing.