Have you tried googling the error? Assuming you are using the TurnKey MySQL appliance then there should be nothing on TurnKey causing this. FWIW all the other appliances that include MySQL (e.g. LAMP) have it locked down and only available from localhost.
Also by default TurnKey uses self signed certificates. Perhaps that is part of the problem? Maybe you need to add your self signed cert to the trusted certs in your Android emu?
If you keep in mind that under the hood TurnKey is Debian (v14.x = Jessie) then you should find tons of relevant info online.
Having said that, if you find a solution it'd be great if you post back as others may find your info handy.
I know nothing about this...
Also by default TurnKey uses self signed certificates. Perhaps that is part of the problem? Maybe you need to add your self signed cert to the trusted certs in your Android emu?
If you keep in mind that under the hood TurnKey is Debian (v14.x = Jessie) then you should find tons of relevant info online.
Having said that, if you find a solution it'd be great if you post back as others may find your info handy.