[Icecast] Icecast Server doesn't start even after being properly configured

[Marvin Scholz]

It is possible that you are not able to connect to your external IP 
address and reach Icecast.
Please try doing so from a connection that has not the external IP that 
Icecast has, like with
your mobile phone over cellular network.

The hostname should preferably be a hostname, not an IP address but if 
you have none, set it to your
public IP address and make sure you forward the right port in your 
router.