diff --git a/src/rudp/partials/RUDP.ServerTo.cs b/src/rudp/partials/RUDP.ServerTo.cs
index 9f688d5..294d138 100644
--- a/src/rudp/partials/RUDP.ServerTo.cs
+++ b/src/rudp/partials/RUDP.ServerTo.cs
@@ -373,6 +373,10 @@ private void ContentUpdate()
 
                                 // invoke new client
                                 On.OnAccept?.Invoke(null, client);
+                                
+                                // start client connection callback
+                                client._on?.OnModify(null, _socket);
+                                client._on?.OnOpen(null, null);
                             }
                         });