diff --git a/actioncable/lib/action_cable/connection/base.rb b/actioncable/lib/action_cable/connection/base.rb
index 1acef93025aaee2da3ba71a6768d2b13e41bf1a2..ea7513e72baebb7d190193ce83e1d7f52b693180 100644
--- a/actioncable/lib/action_cable/connection/base.rb
+++ b/actioncable/lib/action_cable/connection/base.rb
@@ -154,7 +154,7 @@ def cookies
         def handle_open
           connect if respond_to?(:connect)
           subscribe_to_internal_channel
-          beat
+          confirm_connection_monitor_subscription
 
           message_buffer.process!
           server.add_connection(self)
@@ -173,6 +173,13 @@ def handle_close
           disconnect if respond_to?(:disconnect)
         end
 
+        def confirm_connection_monitor_subscription
+          # Send confirmation message to the internal connection monitor channel.
+          # This ensures the connection monitor state is reset after a successful
+          # websocket connection.
+          transmit ActiveSupport::JSON.encode(identifier: ActionCable::INTERNAL[:identifiers][:ping], type: ActionCable::INTERNAL[:message_types][:confirmation])
+        end
+
         def allow_request_origin?
           return true if server.config.disable_request_forgery_protection
 
diff --git a/actioncable/test/connection/base_test.rb b/actioncable/test/connection/base_test.rb
index e2b017a9a19ed72eb90f19731e14e5614eb8eb67..3bef9e95a1829e7adae9368aba5db3be4935fd81 100644
--- a/actioncable/test/connection/base_test.rb
+++ b/actioncable/test/connection/base_test.rb
@@ -56,7 +56,7 @@ def send_async(method, *args)
     run_in_eventmachine do
       connection = open_connection
 
-      connection.websocket.expects(:transmit).with(regexp_matches(/\_ping/))
+      connection.websocket.expects(:transmit).with({ identifier: "_ping", type: "confirm_subscription" }.to_json)
       connection.message_buffer.expects(:process!)
 
       connection.process