Nope, I'm not using LDAP for authentication (I don't have it enabled for client nor server). As I mentioned then Madsonic Android Client is broken, not DSub which is working without any issues with latest Madsonic version.
Also seeing this in the log (username and password are actually correct):
WARN LoginFailureLogger Login failed for [username] from [xxx.xxx.xxx.xxx]
I'm out of ideas.