Asus RT-AC87U USB3 Attached Storage Drops Off

Hello,

I am using the above router with the latest factory firmware. I am having issues where my attached USB3 storage is dropping off regularly.

I am not sure if the HDD is going to sleep and the router cant wake it up or if it is a router issue. Once it drops off the only way I can get the router to recognize it again is by disconnecting the cable and reattaching. It usually recognizes but occasionally I need to reboot / power down to get it back up and visible to the router.

Any...

Asus RT-AC87U USB3 Attached Storage Drops Off