diff --git a/backend/app/services/mediamtx/publisher_sync.rb b/backend/app/services/mediamtx/publisher_sync.rb
index 3a00259..931ab3a 100644
--- a/backend/app/services/mediamtx/publisher_sync.rb
+++ b/backend/app/services/mediamtx/publisher_sync.rb
@@ -40,6 +40,8 @@ module Mediamtx
 
       return true if info["online"]
       return true if info["source"].present?
+      # MediaMTX a volte lascia online=false con publisher attivo; i byte in ingresso confermano il segnale.
+      return true if info["ready"] && info["bytesReceived"].to_i > 1_000_000
 
       false
     end