Use MongoDB to retrieve username / password.
Open the UniFI controller.
Download mongoDB ZIP file and place it on your desktop. (Make sure to get the ZIP file and not the EXE or MSI).
Open the mongoDB folder.
Open Terminal (Mac OS X, Linux) or the Command Prompt (Windows) then drag the “/bin” folder contained inside the mongoDB directory to the Command prompt / Terminal to get to the correct path.
Note: The path should look something like this: /Users/yourname/Desktop/mongodb-osx-x86_64-2.2.3/bin
Before completing Step 4, type the following after “/bin”:
/mongo –port 27117
Then type:
use ace
Then type:
db.admin.find()