diff --git a/pkg/compute/models/guestnetworks.go b/pkg/compute/models/guestnetworks.go
index bd17515f73..ae110ec521 100644
--- a/pkg/compute/models/guestnetworks.go
+++ b/pkg/compute/models/guestnetworks.go
@@ -338,10 +338,10 @@ func (manager *SGuestnetworkManager) DeleteGuestNics(ctx context.Context, guest
 	return nil
 }
 
-func (manager *SGuestnetworkManager) getGuestNicByIP(ip string) (*SGuestnetwork, error) {
+func (manager *SGuestnetworkManager) getGuestNicByIP(ip string, networkId string) (*SGuestnetwork, error) {
 	gn := SGuestnetwork{}
 	q := manager.Query()
-	q = q.Equals("ip_addr", ip)
+	q = q.Equals("ip_addr", ip).Equals("network_id", networkId)
 	err := q.First(&gn)
 	if err != nil {
 		if err != sql.ErrNoRows {
@@ -578,4 +578,4 @@ func (manager *SGuestnetworkManager) getRecentlyReleasedIPAddresses(networkId st
 		}
 	}
 	return ret
-}
\ No newline at end of file
+}
diff --git a/pkg/compute/models/guests.go b/pkg/compute/models/guests.go
index 8946d7ff73..ab79869450 100644
--- a/pkg/compute/models/guests.go
+++ b/pkg/compute/models/guests.go
@@ -1660,7 +1660,7 @@ func (self *SGuest) SyncVMNics(ctx context.Context, userCred mcclient.TokenCrede
 			continue // cannot determine which network it attached to
 		}
 		// check if the IP has been occupied, if yes, release the IP
-		gn, err := GuestnetworkManager.getGuestNicByIP(add.nic.GetIP())
+		gn, err := GuestnetworkManager.getGuestNicByIP(add.nic.GetIP(), add.net.Id)
 		if err != nil {
 			result.AddError(err)
 			continue