Live Broadcast connection problem

The Live Broadcasting connections raised this error:
Error with connection '*******’
Can’t connect to streaming server

Start to use Liquidsoap and Mixxx.
The stream on Liquidsoap is OK.
When I try to connect to a mountpoint within liquidsoap the above error is displayd.

There is nothing in the logs.
When I use darkice instead of Mixxx then I see log entries in liquidsoap.

Haven’t checked the stream settings in Mixxx.
First step is the connection.

Setup:
Debian: liquidsoap 2.0
Mint: Mixxx 2.2.3 (from repository)