diff --git a/src/backend/app/services/network_scanner.py b/src/backend/app/services/network_scanner.py
index 804ca9a..c6bddba 100644
--- a/src/backend/app/services/network_scanner.py
+++ b/src/backend/app/services/network_scanner.py
@@ -21,9 +21,7 @@ class NetworkScanner:
         # 扫描开放22(SSH)或23(Telnet)端口的设备
         self.nm.scan(
             hosts=subnet,
-            arguments="-p 22,23 -Pn -T4 --packet-trace --disable-arp-ping",
-            timeout=5
-
+            arguments="-p 22,23,80,161 --min-rate 1000 --max-retries 1"
         )
 
         devices = []