diff --git a/config/config.go b/config/config.go
index 23a08e9..55c23de 100755
--- a/config/config.go
+++ b/config/config.go
@@ -121,10 +121,6 @@ func GetConfigCached() (conf Config, err error) {
 
 // CompatibleConfig 兼容之前的配置文件
 func (conf *Config) CompatibleConfig() {
-	// 如配置文件不为空, 兼容之前的语言为中文
-	if conf.Lang == "" {
-		conf.Lang = "zh"
-	}
 
 	// 如果之前密码不为空且不是bcrypt加密后的密码, 把密码加密并保存
 	if conf.Password != "" && !util.IsHashedPassword(conf.Password) {
diff --git a/static/constant.js b/static/constant.js
index b4311b7..84eb64a 100644
--- a/static/constant.js
+++ b/static/constant.js
@@ -194,7 +194,7 @@ const I18N_MAP = {
     'Deny from WAN': 'Deny from WAN',
     'NotAllowWanAccessHelp': 'Default enabled, can prohibit access to this page from the public network',
     'Username': 'Username',
-    'accountHelp': 'Please enter to protect your information security',
+    'accountHelp': 'Username/Password is required',
     'passwordHelp': 'If you need to change the password, please enter it here',
     'Password': 'Password',
     'WebhookURLHelp': `
@@ -257,7 +257,7 @@ const I18N_MAP = {
     'Deny from WAN': '禁止公网访问',
     'NotAllowWanAccessHelp': '默认启用, 可禁止从公网访问本页面',
     'Username': '用户名',
-    'accountHelp': '为保护你的信息安全，建议输入',
+    'accountHelp': '必须输入用户名/密码',
     'passwordHelp': '如需修改密码，请在此处输入新密码',
     'Password': '密码',
     'WebhookURLHelp': `
diff --git a/util/messages.go b/util/messages.go
index 83c58d7..2a03dcd 100644
--- a/util/messages.go
+++ b/util/messages.go
@@ -53,9 +53,9 @@ func init() {
 	message.SetString(language.English, "Callback调用失败, 异常信息: %s", "Webhook called failed! Exception: %s")
 
 	// save
-	message.SetString(language.English, "请在ddns-go启动后 10 分钟内完成初始化配置", "Please initialize configuration within 10 minutes after ddns-go starts")
-	message.SetString(language.English, "之前未设置帐号密码, 仅允许在ddns-go启动后 10 分钟内设置, 请重启ddns-go", "The username/password has not been set before, only allowed to set within 10 minutes after ddns-go starts, please restart ddns-go")
-	message.SetString(language.English, "必须输入登录用户名/密码", "Must enter login username/password")
+	message.SetString(language.English, "请在ddns-go启动后 %d 分钟内完成初始化配置", "Please initialize configuration within %d minutes after ddns-go starts")
+	message.SetString(language.English, "之前未设置帐号密码, 仅允许在ddns-go启动后 %d 分钟内设置, 请重启ddns-go", "The username/password has not been set before, only allowed to set within %d minutes after ddns-go starts, please restart ddns-go")
+	message.SetString(language.English, "必须输入用户名/密码", "Username/Password is required")
 	message.SetString(language.English, "密码不安全！尝试使用更复杂的密码", "Password is not secure! Try using a more complex password")
 	message.SetString(language.English, "数据解析失败, 请刷新页面重试", "Data parsing failed, please refresh the page and try again")
 	message.SetString(language.English, "第 %s 个配置未填写域名", "The %s config does not fill in the domain")
@@ -117,6 +117,7 @@ func init() {
 	message.SetString(language.English, "用户名或密码错误", "Username or password is incorrect")
 	message.SetString(language.English, "登录失败次数过多，请等待 %d 分钟后再试", "Too many login failures, please try again after %d minutes")
 	message.SetString(language.English, "用户名 %s 的密码已重置成功! 请重启ddns-go", "The password of username %s has been reset successfully! Please restart ddns-go")
+	message.SetString(language.English, "请在 %s 之前完成用户名密码设置", "Please complete the username and password setting before %s")
 
 }
 
diff --git a/web/auth.go b/web/auth.go
index bbfb04f..bf44ef0 100644
--- a/web/auth.go
+++ b/web/auth.go
@@ -51,7 +51,7 @@ func AuthAssert(f ViewFunc) ViewFunc {
 
 		// 配置文件为空, 启动时间超过3小时禁止从公网访问
 		if err != nil &&
-			time.Now().Unix()-startTime > 3*60*60 && !util.IsPrivateNetwork(r.RemoteAddr) {
+			time.Since(startTime) > time.Duration(3*time.Hour) && !util.IsPrivateNetwork(r.RemoteAddr) {
 			w.WriteHeader(http.StatusForbidden)
 			util.Log("%q 配置文件为空, 超过3小时禁止从公网访问", util.GetRequestIPStr(r))
 			return
diff --git a/web/login.go b/web/login.go
index f02ca92..a300bdb 100755
--- a/web/login.go
+++ b/web/login.go
@@ -53,6 +53,8 @@ func Login(writer http.ResponseWriter, request *http.Request) {
 
 // LoginFunc login func
 func LoginFunc(w http.ResponseWriter, r *http.Request) {
+	accept := r.Header.Get("Accept-Language")
+	util.InitLogLang(accept)
 
 	if ld.failedTimes >= 5 {
 		lockMinute := loginUnlock()
@@ -99,6 +101,12 @@ func LoginFunc(w http.ResponseWriter, r *http.Request) {
 		http.SetCookie(w, cookieInSystem)
 
 		util.Log("%q 登陆成功", util.GetRequestIPStr(r))
+
+		// 提示在服务启动时间内完成初始化配置
+		if conf.Username == "" && conf.Password == "" {
+			util.Log("请在 %s 之前完成用户名密码设置", startTime.Add(saveLimit).Format("2006-01-02 15:04:05"))
+		}
+
 		returnOK(w, util.LogStr("登陆成功"), cookieInSystem.Value)
 		return
 	}
diff --git a/web/login.html b/web/login.html
index 30ce461..63831c7 100755
--- a/web/login.html
+++ b/web/login.html
@@ -130,7 +130,7 @@
       showMessage({
         content: i18n({
           "en": "You have not set up a user yet. Please click Login button directly and be sure to set up your username and password immediately after logging in.",
-          "zh-cn": "尚未设置用户, 请直接点击登录，登录后请立即设置用户名和密码",
+          "zh-cn": "尚未设置用户，请直接点击登录，登录后请立即设置用户名和密码",
         }),
         type: "info",
         duration: 300000,
diff --git a/web/save.go b/web/save.go
index a4b4ec9..de2ebc0 100755
--- a/web/save.go
+++ b/web/save.go
@@ -11,7 +11,11 @@ import (
 	"github.com/jeessy2/ddns-go/v6/util"
 )
 
-var startTime = time.Now().Unix()
+// 服务启动时间
+var startTime = time.Now()
+
+// 保存限制时间
+var saveLimit = time.Duration(30 * time.Minute)
 
 // Save 保存
 func Save(writer http.ResponseWriter, request *http.Request) {
@@ -53,15 +57,15 @@ func checkAndSave(request *http.Request) string {
 	accept := request.Header.Get("Accept-Language")
 	conf.Lang = util.InitLogLang(accept)
 
-	// 首次设置 && 必须在服务启动的 10 分钟内
-	if time.Now().Unix()-startTime > 10*60 {
+	// 首次设置 && 限制时间
+	if time.Since(startTime) > saveLimit {
 		if firstTime {
-			return util.LogStr("请在ddns-go启动后 10 分钟内完成初始化配置")
+			return util.LogStr("请在ddns-go启动后 %d 分钟内完成初始化配置", int(saveLimit.Minutes()))
 		}
-		// 之前未设置帐号密码 && 本次设置了帐号或密码 必须在10分钟内
+		// 之前未设置帐号密码 && 本次设置了帐号或密码 必须在30分钟内
 		if (conf.Username == "" && conf.Password == "") &&
 			(usernameNew != "" || passwordNew != "") {
-			return util.LogStr("之前未设置帐号密码, 仅允许在ddns-go启动后 10 分钟内设置, 请重启ddns-go")
+			return util.LogStr("之前未设置帐号密码, 仅允许在ddns-go启动后 %d 分钟内设置, 请重启ddns-go", int(saveLimit.Minutes()))
 		}
 	}
 
@@ -82,7 +86,7 @@ func checkAndSave(request *http.Request) string {
 
 	// 帐号密码不能为空
 	if conf.Username == "" || conf.Password == "" {
-		return util.LogStr("必须输入登录用户名/密码")
+		return util.LogStr("必须输入用户名/密码")
 	}
 
 	dnsConfFromJS := data.DnsConf