Do I need an admin username and password for Genymotion?

✅ YES, for the TURN/STUN setup you need a username and password for the CoTURN server. The guide says to define a static user like user=my_username:123456, and then enter that same username and password in the Genymotion instance settings. How to create and setup a STUN/TURN server on AWS?

If you meant Genymotion Desktop login, it uses your account email and password, not an admin username. GMTool

What are you trying to access or configure?