diff --git a/internal/app/controller/controller.go b/internal/app/controller/controller.go
index 3d5835d1..00ca907f 100644
--- a/internal/app/controller/controller.go
+++ b/internal/app/controller/controller.go
@@ -49,10 +49,12 @@ func NewGameController() (c *GameController) {
 	c.AutoRefServer = rcon.NewAutoRefServer()
 	c.AutoRefServer.LoadTrustedKeys(c.Config.Server.AutoRef.TrustedKeysDir)
 	c.AutoRefServer.ProcessRequest = c.ProcessAutoRefRequests
+	c.AutoRefServer.ClientsChangedObservers = []func(){c.updateOnlineStates}
 
 	c.TeamServer = rcon.NewTeamServer()
 	c.TeamServer.LoadTrustedKeys(c.Config.Server.Team.TrustedKeysDir)
 	c.TeamServer.ProcessTeamRequest = c.ProcessTeamRequests
+	c.TeamServer.ClientsChangedObservers = []func(){c.updateOnlineStates}
 
 	c.CiServer = rcon.NewCiServer()
 
@@ -84,6 +86,7 @@ func (c *GameController) Run() {
 	c.ApiServer.PublishUiProtocol(c.Engine.PersistentState.Protocol)
 	c.TeamServer.AllowedTeamNames = []string{c.Engine.State.TeamState[TeamYellow].Name,
 		c.Engine.State.TeamState[TeamBlue].Name}
+	c.updateOnlineStates()
 
 	go c.AutoRefServer.Listen(c.Config.Server.AutoRef.Address)
 	go c.AutoRefServer.ListenTls(c.Config.Server.AutoRef.AddressTls)
@@ -150,7 +153,6 @@ func (c *GameController) publish() {
 	c.PublishMutex.Lock()
 	defer c.PublishMutex.Unlock()
 
-	c.updateOnlineStates()
 	c.statePreserver.Save(c.Engine.PersistentState)
 
 	c.TeamServer.AllowedTeamNames = []string{
@@ -184,6 +186,8 @@ func (c *GameController) updateOnlineStates() {
 	}
 	sort.Strings(autoRefs)
 	c.Engine.GcState.AutoRefsConnected = autoRefs
+
+	c.publish()
 }
 
 // publishToNetwork publishes the current state to the network (multicast) every 25ms
diff --git a/internal/app/rcon/autoRefServer.go b/internal/app/rcon/autoRefServer.go
index 1f598ccc..4ad0b4a9 100644
--- a/internal/app/rcon/autoRefServer.go
+++ b/internal/app/rcon/autoRefServer.go
@@ -117,6 +117,9 @@ func (s *AutoRefServer) handleClientConnection(conn net.Conn) {
 	s.Clients[client.Id] = client.Client
 	defer s.CloseConnection(conn, client.Id)
 	log.Printf("Client %v connected", client.Id)
+	for _, observer := range s.ClientsChangedObservers {
+		observer()
+	}
 
 	for {
 		req := refproto.AutoRefToController{}
diff --git a/internal/app/rcon/server.go b/internal/app/rcon/server.go
index 1cac9121..0e9b79f6 100644
--- a/internal/app/rcon/server.go
+++ b/internal/app/rcon/server.go
@@ -17,9 +17,10 @@ import (
 )
 
 type Server struct {
-	Clients           map[string]*Client
-	TrustedKeys       map[string]*rsa.PublicKey
-	ConnectionHandler func(net.Conn)
+	Clients                 map[string]*Client
+	TrustedKeys             map[string]*rsa.PublicKey
+	ConnectionHandler       func(net.Conn)
+	ClientsChangedObservers []func()
 }
 
 type Client struct {
@@ -93,6 +94,9 @@ func (s *Server) ListenTls(address string) {
 func (s *Server) CloseConnection(conn net.Conn, id string) {
 	delete(s.Clients, id)
 	log.Printf("Connection to %v closed", id)
+	for _, observer := range s.ClientsChangedObservers {
+		observer()
+	}
 }
 
 func (c *Client) Ok() (reply refproto.ControllerReply) {
diff --git a/internal/app/rcon/teamServer.go b/internal/app/rcon/teamServer.go
index d6da67c5..d59d31c5 100644
--- a/internal/app/rcon/teamServer.go
+++ b/internal/app/rcon/teamServer.go
@@ -129,6 +129,9 @@ func (s *TeamServer) handleClientConnection(conn net.Conn) {
 	s.Clients[client.Id] = client.Client
 	defer s.CloseConnection(conn, client.Id)
 	log.Printf("Client %v connected", client.Id)
+	for _, observer := range s.ClientsChangedObservers {
+		observer()
+	}
 
 	for {
 		req := refproto.TeamToController{}