Direct access to MySQL on mobile

[Klaus major-k]

Hi friends,

we have a stack that accesses an online MySQL database directly.
This works in the IDE on Mac and Windows, the address is like this:
xxxx.xxxmedia.ch:3306
DB Username and PWD are correct.

However when we create an Android app and try it on a tablet we get:
-----------------------------------------------------------
Unable to connect to the database:
Unknown MySQL server host 'kallisto.kreativmedia.ch' (13)
-----------------------------------------------------------

What is the problem?  Do we need to add something to the address like 
https or something?

Any hints VERY welcome!


Best

Klaus
--
Klaus Major
https://www.major-k.de
https://www.major-k.de/bass
klaus at major-k.de