diff --git a/matrix/server.py b/matrix/server.py
index 3a0b8d0..d296e60 100644
--- a/matrix/server.py
+++ b/matrix/server.py
@@ -336,6 +336,8 @@ class MatrixServer:
         self.access_token = ""
         self.receive_queue.clear()
 
+        self.lag = 0
+        W.bar_item_update("lag")
         self.reconnect_delay = 0
         self.reconnect_time = None