diff --git a/out_service/cd.py b/out_service/cd.py
index 47ff7200..b50f8dc7 100644
--- a/out_service/cd.py
+++ b/out_service/cd.py
@@ -73,12 +73,12 @@ class JSONRequestHandler(BaseHTTPRequestHandler):
         def connect_and_send():
             nonlocal sc
             sc = sc_all[addr]
-            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
             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.sendall(b"R")
             except Exception as e:
                 try: