diff --git a/misc.md b/misc.md
index 5b49e0a..5da27e3 100644
--- a/misc.md
+++ b/misc.md
@@ -15,3 +15,8 @@ $ sudo rm /tmp/env-vars
 ```
 
 Is there a fix for this?
+
+## wireguard tunnel isn't working!
+
+If one of your clients is showing 0 bytes recieved, then try changing the control port on both
+the client and the server. See b6b86824def331d1a558aa7c5bd9f41bd3eb6aea for an example.