diff --git a/config/config.go b/config/config.go
index e0b0328..51ef9d0 100644
--- a/config/config.go
+++ b/config/config.go
@@ -21,7 +21,7 @@ const (
 
 var (
 	NameSpace     string = "gim"
-	MySQL         string = "root:Fnuo123com@@tcp(119.23.182.117:3306)/gim?charset=utf8&parseTime=true"
+	MySQL         string = "root:Fnuo123com@@tcp(119.23.182.117:3306)/gim?charset=utf8&parseTime=true&loc=Local"
 	RedisIP       string = "120.24.28.6:32572"
 	RedisPassword string = ""
 
diff --git a/internal/logic/domain/device/device_service.go b/internal/logic/domain/device/device_service.go
index 81518df..8c7ab19 100644
--- a/internal/logic/domain/device/device_service.go
+++ b/internal/logic/domain/device/device_service.go
@@ -41,9 +41,16 @@ func (*deviceService) SignIn(ctx context.Context, userId, deviceId int64, token
 	masterId, _ := grpclib.GetCtxMasterId(ctx)
 	cacheKey := fmt.Sprintf(SignInKey, masterId, utils.Int64ToStr(userId))
 	if db.RedisUtil.Exists(cacheKey) {
+		utils.FilePutContents("sign_in", utils.SerializeStr(map[string]interface{}{
+			"user_id":     userId,
+			"device_id":   deviceId,
+			"token":       token,
+			"conn_addr":   connAddr,
+			"client_addr": clientAddr,
+		}))
 		return errors.New("限频！！！")
 	} else {
-		err := db.RedisUtil.Set(SignInKey, "already", SignInExpire)
+		err := db.RedisUtil.Set(cacheKey, "already", SignInExpire)
 		if err != nil {
 			return gerrors.WrapError(err)
 		}