I am on Magento 2.x. I am giving the correct username/password and still can not get in. What's wrong?
During login, this mobile requests your Magento server for an admin token using your username/password. With Magento platform, if in the past, there has been multiple failed request with incorrect password the system doesn't issue a token. To correct the scenario, open Magento database and find the following table:
In this table, reset the failures_count against your username to 0. Save the value in your database.
Retry login to your mobile app.