Actually I have a RT-AC68W, but the hardware is identical to the U, so..
Anyways, thanks to this forum, the router recognized my 2TB USB 3.0 WD GoFlex External Desk formatted in Ext4, after I disabled "Reducing USB 3.0 interference", Samba and FTP both work fine... but then the external drive will mysteriously disappear/disconnect from the router after a certain while. At first, I thought it was the spin down setting, but same thing happened after disabling it.
I have the latest...
RT-AC68U USB 3.0 External Drive disappears
Anyways, thanks to this forum, the router recognized my 2TB USB 3.0 WD GoFlex External Desk formatted in Ext4, after I disabled "Reducing USB 3.0 interference", Samba and FTP both work fine... but then the external drive will mysteriously disappear/disconnect from the router after a certain while. At first, I thought it was the spin down setting, but same thing happened after disabling it.
I have the latest...
RT-AC68U USB 3.0 External Drive disappears