diff --git a/api/panel/user.go b/api/panel/user.go
index 35b2308..1e80e7b 100644
--- a/api/panel/user.go
+++ b/api/panel/user.go
@@ -5,6 +5,8 @@ import (
 
 	"encoding/json/jsontext"
 	"encoding/json/v2"
+
+	log "github.com/sirupsen/logrus"
 )
 
 type OnlineUser struct {
@@ -84,26 +86,44 @@ func (c *Client) GetUserList() ([]UserInfo, error) {
 }
 
 func (c *Client) GetUserAlive() (map[int]int, error) {
-	c.AliveMap = &AliveMap{}
-	c.AliveMap.Alive = make(map[int]int)
-	/*const path = "/v1/server/alivelist"
-	r, err := c.client.R().
+	const path = "/v1/server/alivelist"
+	c.AliveMap = &AliveMap{Alive: make(map[int]int)}
+
+	r, err := c.Client.R().
 		ForceContentType("application/json").
 		Get(path)
-	if err != nil || r.StatusCode() >= 399 {
-		c.AliveMap.Alive = make(map[int]int)
+	if err != nil || r == nil {
+		log.WithFields(log.Fields{
+			"path": path,
+			"err":  err,
+		}).Warn("alivelist request failed; falling back to empty map")
+		return c.AliveMap.Alive, nil
 	}
-	if r == nil || r.RawResponse == nil {
-		fmt.Printf("received nil response or raw response")
-		c.AliveMap.Alive = make(map[int]int)
+	if r.StatusCode() == 304 {
+		return c.AliveMap.Alive, nil
 	}
-	defer r.RawResponse.Body.Close()
-	if err := json.Unmarshal(r.Body(), c.AliveMap); err != nil {
-		//fmt.Printf("unmarshal user alive list error: %s", err)
-		c.AliveMap.Alive = make(map[int]int)
+	if r.StatusCode() >= 400 {
+		log.WithFields(log.Fields{
+			"path":   path,
+			"status": r.StatusCode(),
+			"body":   string(r.Body()),
+		}).Warn("alivelist returned non-2xx; falling back to empty map")
+		return c.AliveMap.Alive, nil
+	}
+	body := &AliveMap{}
+	if err := json.Unmarshal(r.Body(), body); err != nil {
+		log.WithFields(log.Fields{
+			"path": path,
+			"err":  err,
+		}).Warn("alivelist response unmarshal failed; falling back to empty map")
+		return c.AliveMap.Alive, nil
+	}
+	if body.Alive == nil {
+		log.WithField("path", path).Warn("alivelist response missing 'alive' field; falling back to empty map")
+		return c.AliveMap.Alive, nil
 	}
-	*/
-	return c.AliveMap.Alive, nil
+	c.AliveMap = body
+	return body.Alive, nil
 }
 
 type ServerPushUserTrafficRequest struct {
diff --git a/node/node.go b/node/node.go
index 94b845f..95baf88 100644
--- a/node/node.go
+++ b/node/node.go
@@ -48,13 +48,14 @@ func (n *Node) StartNodes(apiConfig *conf.ServerApiConfig, core vCore.Core) erro
 		return err
 	}
 	var nodeinfos []*panel.NodeInfo
-	n.controllers = make([]*Controller, len(nodeinfos))
+	n.controllers = make([]*Controller, len(protocols))
+	pushI, pullI := resolveIntervals(basic)
 	for i, p := range protocols {
 		node := &panel.NodeInfo{
 			Id:           apiConfig.ServerId,
 			Type:         p.Type,
-			PushInterval: time.Duration(basic.PushInterval.(int)) * time.Second,
-			PullInterval: time.Duration(basic.PullInterval.(int)) * time.Second,
+			PushInterval: pushI,
+			PullInterval: pullI,
 			Common: &panel.CommonNode{
 				Protocol: p.Type,
 			},
@@ -233,3 +234,48 @@ func (n *Node) Close() {
 	}
 	n.controllers = nil
 }
+
+// resolveIntervals returns push/pull intervals from BasicConfig with fallbacks.
+// JSON decoders default numeric fields to float64, so the original .(int)
+// assertion on basic.PushInterval would panic. Also tolerates a nil basic
+// (server without the basic field, or pre-fix server build).
+func resolveIntervals(basic *panel.BasicConfig) (push, pull time.Duration) {
+	const defaultPush = 30 * time.Second
+	const defaultPull = 60 * time.Second
+	if basic == nil {
+		return defaultPush, defaultPull
+	}
+	push = intervalSec(basic.PushInterval, defaultPush)
+	pull = intervalSec(basic.PullInterval, defaultPull)
+	return
+}
+
+func intervalSec(v any, def time.Duration) time.Duration {
+	if v == nil {
+		return def
+	}
+	switch x := v.(type) {
+	case int:
+		if x <= 0 {
+			return def
+		}
+		return time.Duration(x) * time.Second
+	case int64:
+		if x <= 0 {
+			return def
+		}
+		return time.Duration(x) * time.Second
+	case float64:
+		if x <= 0 {
+			return def
+		}
+		return time.Duration(x) * time.Second
+	case string:
+		n, err := strconv.Atoi(x)
+		if err != nil || n <= 0 {
+			return def
+		}
+		return time.Duration(n) * time.Second
+	}
+	return def
+}