You should be able to see it after you power off the router, connect the USB drive cable to the router. Ensure that power AC adapter is connected to the USB drive and it's ON or in standby. Power ON the router and after it's ready, DLNA and iTunes were enabled and settings were saved. Initially I did see the the message that no drive was detected so I powered OFF the router a 2nd time then powered on and then it worked. I set my logging on the router before turning it off to capture status and critical. I captured the following:
DIR-645 A1 v1.02
OSX 10.8.2
WD My Book 2007 2Tb USB drive.
DLNA and iTunes Server enabled on router.
Logging captured the following lines:
ntfs-3g[2881]: Mounted /var/tmp/sda1 (Read-Write, label "My Book", NTFS 3.1)
ntfs-3g[2881]: Mount options: allow_other,nonempty,relatime,fsname=/var/tmp/sda1,blkdev,blksize=4096
hotplug[1906]: callprog(success) prog=/var/etc/silex/hotplug_misc.sh act=AFTERMNT, retval=(timeout,0)
mt-daapd[3094]: iTunes server listen at interface = br0:192.168.0.1
mt-daapd[3094]: Scanned 4 songs in 2 seconds
Opened iTunes and selected the DIR-645 in the left side pane and 4 songs appeared in the right side pain and playable
My Book is formatted with WD RAID SW for NTFS and is configured for maximum space.
Unfortunately Shareport v4.20 fails to connect to the drive. I tried both 10.6.8 and 10.8.2. I believe I had sent information regarding this previously to D-Link about this. I'll have to check my history. This maybe a compatibility issue since both OSX 10.6.8 thru 10.8.2 are newer OSs and since service packs have been updated on OSX, might have become incompatible with SP and SP needs to be updated at some level which D-Link needs to review and resolve.
I would ask you to phone contact D-Link support, level 2 and ask them about this issue and see if there is any information regarding this and any fixes to SP. I'll bring this to my contact at D-Link again.