diff --git a/web/job/check_client_ip_job.go b/web/job/check_client_ip_job.go
index 163e3eba..9e988ce2 100644
--- a/web/job/check_client_ip_job.go
+++ b/web/job/check_client_ip_job.go
@@ -12,7 +12,6 @@ import (
 
 	"sort"
 	"strings"
-	"time"
 )
 
 type CheckClientIpJob struct {
@@ -105,7 +104,6 @@ func processLogFile() {
 			checkError(err)
 		}
 	}
-	time.Sleep(30 * time.Second)
 
 }
 func GetAccessLogPath() string {
diff --git a/web/web.go b/web/web.go
index 3d8f0242..cea0e911 100644
--- a/web/web.go
+++ b/web/web.go
@@ -251,7 +251,7 @@ func (s *Server) startTask() {
 	s.cron.AddJob("@every 30s", job.NewCheckInboundJob())
 
 	// check client ips from log file every 10 sec
-	s.cron.AddJob("@every 10s", job.NewCheckClientIpJob())
+	s.cron.AddJob("@every 30s", job.NewCheckClientIpJob())
 
 	// Make a traffic condition every day, 8:30
 	var entry cron.EntryID