Mostly such NGINX based server forwards the Icecast or Shoutcast audio stream to add some functionality, e.g. load balancing or security/analysis or others. They answer the HTTP 1.1 stream request of the Streaming Client with a stream in "Chunked_transfer_encoding" mode and this does the Streaming Client not like.
A - If you have access to this NGINX based web server, then you can easily disable the "chunked" streaming.
You can do that in the default script (path: /nginx/sites-available) or if you use an own script then you have to disable it there, in the server section you have to add the line:
B - you can use our special Streaming Client firmware v3.23h, that changes the HTTP stream request from 1.1 to 1.0.
You can download this special firmware here .