diff --git a/docs/frequently-asked-questions.md b/docs/frequently-asked-questions.md
index dd1b00b5196cdbe2d25bc5eed35bd45658165645..0e4c9e298402dc469e4d62fdde59939274fb70d8 100644
--- a/docs/frequently-asked-questions.md
+++ b/docs/frequently-asked-questions.md
@@ -5,6 +5,7 @@
 
 - [Frequently Asked Questions](#frequently-asked-questions)
     - [I have issues with starting the Engine](#i-have-issues-with-starting-the-engine)
+    - [I have issues during some Engine play-out](#i-have-issues-during-some-engine-play-out)
     - [Read More](#read-more)
 
 <!-- /TOC -->
@@ -22,6 +23,14 @@
 - Also check if your user (è.g. `engineuser`) belongs to the group `audio`.
 - Check the audio interface configuration section in `engine.ini`. Verify if the default settings `input_device_0="hw:0"` and `output_device_0="hw:0"` are valid device IDs.
 
+## I have issues during some Engine play-out
+
+**Some stuttering sound is hearable. The logs say "strange error flushing buffer ..."**
+
+- Check your Icecast connection. Is it up and running?
+- Maybe there is some authentication issue or an Icecast limitation of max clients. See https://github.com/savonet/liquidsoap/issues/524.
+
+
 ## Read More
 
 - [Overview](/README.md)