External Hard Drive Not Recognized by RAX20

> I just got an RAX20 [...]

> Model: RAX40|Nighthawk AX4 4-Stream WiFi Router

   What's true?

   Firmware version?

> [...] I went into EasyShare [...]

   ReadySHARE?

> [...] tried some suggestions [...]

   Think, for a moment, about how little useful information that
non-description conveys to the non-psychics in your audience.

> [...] I found through web searching [...]

   Thanks for the helpful links.

   What's the file system on the external device?  Partitioning?

   Visit http://netgear.com/support , put in your (actual) model number,
and look for Documentation.  Get the User Manual.  Read.  Look for a
topic like "USB Storage Device Requirements".