diff --git a/kernel/bazaar/package.go b/kernel/bazaar/package.go
index e9f4df7a3..2a8cc6ab8 100644
--- a/kernel/bazaar/package.go
+++ b/kernel/bazaar/package.go
@@ -484,7 +484,7 @@ func isOutdatedTemplate(template *Template, bazaarTemplates []*Template) bool {
 
 func isBazzarOnline() (ret bool) {
 	// Improve marketplace loading when offline https://github.com/siyuan-note/siyuan/issues/12050
-	ret = util.IsOnline(util.BazaarOSSServer, true)
+	ret = util.IsOnline(util.BazaarOSSServer, true, 3000)
 	if !ret {
 		util.PushErrMsg(util.Langs[util.Lang][24], 5000)
 	}
diff --git a/kernel/model/sync.go b/kernel/model/sync.go
index 3268d4fdc..b657497f1 100644
--- a/kernel/model/sync.go
+++ b/kernel/model/sync.go
@@ -648,20 +648,23 @@ func planSyncAfter(d time.Duration) {
 func isProviderOnline(byHand bool) (ret bool) {
 	checkURL := util.GetCloudSyncServer()
 	skipTlsVerify := false
+	timeout := 3000
 	switch Conf.Sync.Provider {
 	case conf.ProviderSiYuan:
 	case conf.ProviderS3:
 		checkURL = Conf.Sync.S3.Endpoint
 		skipTlsVerify = Conf.Sync.S3.SkipTlsVerify
+		timeout = Conf.Sync.S3.Timeout * 1000
 	case conf.ProviderWebDAV:
 		checkURL = Conf.Sync.WebDAV.Endpoint
 		skipTlsVerify = Conf.Sync.WebDAV.SkipTlsVerify
+		timeout = Conf.Sync.WebDAV.Timeout * 1000
 	default:
 		logging.LogWarnf("unknown provider: %d", Conf.Sync.Provider)
 		return false
 	}
 
-	if ret = util.IsOnline(checkURL, skipTlsVerify); !ret {
+	if ret = util.IsOnline(checkURL, skipTlsVerify, timeout); !ret {
 		if 1 > autoSyncErrCount || byHand {
 			util.PushErrMsg(Conf.Language(76)+" (Provider: "+conf.ProviderToStr(Conf.Sync.Provider)+")", 5000)
 		}
diff --git a/kernel/util/net.go b/kernel/util/net.go
index 94d6f91ae..60b8a2fe9 100644
--- a/kernel/util/net.go
+++ b/kernel/util/net.go
@@ -72,7 +72,7 @@ func IsLocalOrigin(origin string) bool {
 	return false
 }
 
-func IsOnline(checkURL string, skipTlsVerify bool) bool {
+func IsOnline(checkURL string, skipTlsVerify bool, timeout int) bool {
 	_, err := url.Parse(checkURL)
 	if err != nil {
 		logging.LogWarnf("invalid check URL [%s]", checkURL)
@@ -83,7 +83,7 @@ func IsOnline(checkURL string, skipTlsVerify bool) bool {
 		return false
 	}
 
-	if isOnline(checkURL, skipTlsVerify) {
+	if isOnline(checkURL, skipTlsVerify, timeout) {
 		return true
 	}
 
@@ -104,8 +104,8 @@ func IsPortOpen(port string) bool {
 	return false
 }
 
-func isOnline(checkURL string, skipTlsVerify bool) (ret bool) {
-	c := req.C().SetTimeout(3 * time.Second)
+func isOnline(checkURL string, skipTlsVerify bool, timeout int) (ret bool) {
+	c := req.C().SetTimeout(time.Duration(timeout) * time.Millisecond)
 	if skipTlsVerify {
 		c.EnableInsecureSkipVerify()
 	}