diff --git a/meshtastic/config.proto b/meshtastic/config.proto
index 391cb7d..7f4a5dc 100644
--- a/meshtastic/config.proto
+++ b/meshtastic/config.proto
@@ -37,7 +37,9 @@ message Config {
 
       /*
        * Description: Combination of both ROUTER and CLIENT. Not for mobile devices.
+       * Deprecated in v2.3.15 because improper usage is impacting public meshes: Use ROUTER or CLIENT instead.
        */
+      [deprecated = true]
       ROUTER_CLIENT = 3;
 
       /*