diff --git a/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Config2Impl.c b/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Config2Impl.c
index c19a72730e..b52542cd84 100644
--- a/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Config2Impl.c
+++ b/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Config2Impl.c
@@ -559,13 +559,6 @@ Ip4Config2SetDefaultAddr (
     }
   }
 
-  Ip4AddRoute (
-    IpSb->DefaultRouteTable,
-    StationAddress,
-    SubnetMask,
-    IP4_ALLZERO_ADDRESS
-    );
-
   //
   // Add a route for the connected network.
   //
diff --git a/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Impl.c b/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Impl.c
index 87aadf13e4..b1af5294fb 100644
--- a/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Impl.c
+++ b/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Impl.c
@@ -672,10 +672,14 @@ Ip4ConfigProtocol (
     }
 
     //
-    // Add a route to this connected network in the route table
+    // Add a route to this connected network in the instance route table.
     //
-    Ip4AddRoute (IpInstance->RouteTable, Ip, Netmask, IP4_ALLZERO_ADDRESS);
-
+    Ip4AddRoute (
+      IpInstance->RouteTable, 
+      Ip & Netmask, 
+      Netmask, 
+      IP4_ALLZERO_ADDRESS
+      );
   } else {
     //
     // Use the default address. Check the state.