Netgear RAX20 NAS fstab mount issue Ubuntu - Anyone know full directory of drive?

Hey guys, I just upgraded my old Xiaomi R3G router to the Netgear RAX20 ax1800 wifi6 router. I always use my router's usb port to host storage of my media for plex. I use an Intel NUC running Ubuntu 20.10 to run Plex. I have always perma mounted the router NAS to my Ubuntu NUC via fstab to /media/plex on boot.

Does anyone know what the actual drive's location is on these Negear rax20 routers for the USB port? I have included the fstab (my rax20's IP is 10.1.1.111). I have tried many options like \\ax1800\rax20 etc, which can be mounted manually in ubuntu, but not in fstab since it requires the exact location. Do these go by the IP or what? Thanks in advance for any info.