diff --git a/adapter/provider/provider.go b/adapter/provider/provider.go
index 7a5f5853..10861217 100644
--- a/adapter/provider/provider.go
+++ b/adapter/provider/provider.go
@@ -147,7 +147,7 @@ func (pp *proxySetProvider) getSubscriptionInfo() {
 }
 
 func (pp *proxySetProvider) closeAllConnections() {
-	statistic.DefaultManager.ConnectionsRange(func(c statistic.Tracker) bool {
+	statistic.DefaultManager.Range(func(c statistic.Tracker) bool {
 		for _, chain := range c.Chains() {
 			if chain == pp.Name() {
 				_ = c.Close()
diff --git a/hub/route/connections.go b/hub/route/connections.go
index 927fdefd..b123ecae 100644
--- a/hub/route/connections.go
+++ b/hub/route/connections.go
@@ -73,18 +73,14 @@ func getConnections(w http.ResponseWriter, r *http.Request) {
 
 func closeConnection(w http.ResponseWriter, r *http.Request) {
 	id := chi.URLParam(r, "id")
-	statistic.DefaultManager.ConnectionsRange(func(c statistic.Tracker) bool {
-		if id == c.ID() {
-			_ = c.Close()
-			return false
-		}
-		return true
-	})
+	if c := statistic.DefaultManager.Get(id); c != nil {
+		_ = c.Close()
+	}
 	render.NoContent(w, r)
 }
 
 func closeAllConnections(w http.ResponseWriter, r *http.Request) {
-	statistic.DefaultManager.ConnectionsRange(func(c statistic.Tracker) bool {
+	statistic.DefaultManager.Range(func(c statistic.Tracker) bool {
 		_ = c.Close()
 		return true
 	})
diff --git a/tunnel/statistic/manager.go b/tunnel/statistic/manager.go
index 575649f5..2358d0bd 100644
--- a/tunnel/statistic/manager.go
+++ b/tunnel/statistic/manager.go
@@ -46,6 +46,19 @@ func (m *Manager) Leave(c Tracker) {
 	m.connections.Delete(c.ID())
 }
 
+func (m *Manager) Get(id string) (c Tracker) {
+	if value, ok := m.connections.Load(id); ok {
+		c = value.(Tracker)
+	}
+	return
+}
+
+func (m *Manager) Range(f func(c Tracker) bool) {
+	m.connections.Range(func(key, value any) bool {
+		return f(value.(Tracker))
+	})
+}
+
 func (m *Manager) PushUploaded(size int64) {
 	m.uploadTemp.Add(size)
 	m.uploadTotal.Add(size)
@@ -67,8 +80,8 @@ func (m *Manager) Memory() uint64 {
 
 func (m *Manager) Snapshot() *Snapshot {
 	var connections []*TrackerInfo
-	m.connections.Range(func(key, value any) bool {
-		connections = append(connections, value.(Tracker).Info())
+	m.Range(func(c Tracker) bool {
+		connections = append(connections, c.Info())
 		return true
 	})
 	return &Snapshot{
@@ -79,12 +92,6 @@ func (m *Manager) Snapshot() *Snapshot {
 	}
 }
 
-func (m *Manager) ConnectionsRange(f func(c Tracker) bool) {
-	m.connections.Range(func(key, value any) bool {
-		return f(value.(Tracker))
-	})
-}
-
 func (m *Manager) updateMemory() {
 	stat, err := m.process.MemoryInfo()
 	if err != nil {
@@ -117,5 +124,5 @@ type Snapshot struct {
 	DownloadTotal int64          `json:"downloadTotal"`
 	UploadTotal   int64          `json:"uploadTotal"`
 	Connections   []*TrackerInfo `json:"connections"`
-	Memory        uint64    `json:"memory"`
+	Memory        uint64         `json:"memory"`
 }