I seem to be entering the external database settings incorrectly? After installing, settings, logging out then logging in again I get an error message saying
Table 'prefix_wp.prefix_users' doesn't exist (obviously with my actual prefixes). It seems to be looking at the WordPress database, not my external database.
In the "External Database Settings: User table" field, I've tried both
prefix_usertable as in the screenshot and
Is there another place where I should identify the name/location of the external db?