diff --git a/out_service/cd.py b/out_service/cd.py
index b50f8dc7..2618e130 100644
--- a/out_service/cd.py
+++ b/out_service/cd.py
@@ -2,6 +2,7 @@ from http.server import BaseHTTPRequestHandler, HTTPServer
 import json
 from urllib.parse import urlparse, parse_qs
 import socket
+import traceback
 
 sc_all = {
     "192.168.1.220_6000": None,
@@ -69,25 +70,31 @@ class JSONRequestHandler(BaseHTTPRequestHandler):
         if addr not in sc_all:
             self.error(f'{addr} 未找到')
             return
-        sc = None
+
         def connect_and_send():
-            nonlocal sc
             sc = sc_all[addr]
             try:
                 if sc is None:
                     sc = socket.socket()
                     sc.settimeout(5)  # 设置超时
                     sc.connect((host, int(port)))
-                    sc_all[f"{host}_{port}"] = sc
+                    sc_all[addr] = sc
                 sc.sendall(b"R")
+                return sc
             except Exception as e:
-                try:
-                    sc.close()
-                except Exception:
-                    pass
+                if sc is not None:
+                    try:
+                        sc.close()
+                    except Exception:
+                        pass
+                    sc_all[addr] = None
                 self.error(f'采集器连接失败: {e}')
+                print(traceback.format_exc())
+                return None
 
-        connect_and_send()
+        sc = connect_and_send()
+        if sc is None:
+            return
         resp = sc.recv(1024)
         res = handle_bytes(resp)
         if isinstance(res, str):