diff --git a/adapter/outboundgroup/fallback.go b/adapter/outboundgroup/fallback.go
index 5f365ff8a..734bd6b78 100644
--- a/adapter/outboundgroup/fallback.go
+++ b/adapter/outboundgroup/fallback.go
@@ -66,17 +66,20 @@ func (f *Fallback) onDialFailed() {
 		f.failedTime.Store(now)
 		f.failedTimes.Store(1)
 	} else {
-		if f.failedTime.Load()-time.Now().UnixMilli() > 5*1000 {
+		if f.failedTime.Load()-time.Now().UnixMilli() > 5*time.Second.Milliseconds() {
 			f.failedTimes.Store(-1)
 			f.failedTime.Store(-1)
 		} else {
 			failedCount := f.failedTimes.Inc()
 			log.Warnln("%s failed count: %d", f.Name(), failedCount)
-			if failedCount > 5 {
+			if failedCount >= 5 && failedCount < 6 {
 				log.Warnln("because %s failed multiple times, active health check", f.Name())
 				for _, proxyProvider := range f.providers {
 					go proxyProvider.HealthCheck()
 				}
+
+				f.failedTimes.Store(-1)
+				f.failedTime.Store(-1)
 			}
 		}
 	}
diff --git a/adapter/outboundgroup/urltest.go b/adapter/outboundgroup/urltest.go
index c0ac5d3c3..836dcaac8 100644
--- a/adapter/outboundgroup/urltest.go
+++ b/adapter/outboundgroup/urltest.go
@@ -149,11 +149,14 @@ func (u *URLTest) onDialFailed() {
 		} else {
 			failedCount := u.failedTimes.Inc()
 			log.Warnln("%s failed count: %d", u.Name(), failedCount)
-			if failedCount > 5 {
+			if failedCount >= 5 && failedCount < 6 {
 				log.Warnln("because %s failed multiple times, active health check", u.Name())
 				for _, proxyProvider := range u.providers {
 					go proxyProvider.HealthCheck()
 				}
+
+				u.failedTimes.Store(-1)
+				u.failedTime.Store(-1)
 			}
 		}
 	}