diff --git a/refilc/lib/api/providers/sync.dart b/refilc/lib/api/providers/sync.dart
index 7820b59..e5c3c33 100644
--- a/refilc/lib/api/providers/sync.dart
+++ b/refilc/lib/api/providers/sync.dart
@@ -84,20 +84,20 @@ Future<void> syncAll(BuildContext context) async {
         return;
       }
 
-      //if (user.user!.accessTokenExpire.isBefore(DateTime.now())) {
-      //  String authRes = await Provider.of<KretaClient>(context, listen: false)
-      //          .refreshLogin() ??
-      //      '';
-      //  if (authRes != 'success') {
-      //    if (kDebugMode) print('ERROR: failed to refresh login');
-       //   lock = false;
-       //   return Future.value();
-       // } else {
-       //   if (kDebugMode) print('INFO: access token refreshed');
-       // }
-      //} else {
-      //  if (kDebugMode) print('INFO: access token is not expired');
-      //}
+      if (user.user!.accessTokenExpire.isBefore(DateTime.now())) {
+        String authRes = await Provider.of<KretaClient>(context, listen: false)
+                .refreshLogin() ??
+            '';
+        if (authRes != 'success') {
+          if (kDebugMode) print('ERROR: failed to refresh login');
+      /   lock = false;
+      /   return Future.value();
+      / } else {
+      /   if (kDebugMode) print('INFO: access token refreshed');
+      / }
+      } else {
+        if (kDebugMode) print('INFO: access token is not expired');
+      }
     }()),
 
     syncStatus(Provider.of<GradeProvider>(context, listen: false).fetch()),
diff --git a/refilc_kreta_api/lib/client/client.dart b/refilc_kreta_api/lib/client/client.dart
index 0c6ebc4..1291f1a 100644
--- a/refilc_kreta_api/lib/client/client.dart
+++ b/refilc_kreta_api/lib/client/client.dart
@@ -91,7 +91,7 @@ class KretaClient {
           headerMap.remove("authorization");
           print("DEBUG: 401 error, refreshing login");
           print("DEBUG: 401 error, URL: $url");
-          await refreshLogin();
+          //await refreshLogin();
         } else {
           break;
         }
@@ -160,7 +160,7 @@ class KretaClient {
 
         res = await client.post(Uri.parse(url), headers: headerMap, body: body);
         if (res.statusCode == 401) {
-          await refreshLogin();
+          //await refreshLogin();
           headerMap.remove("authorization");
         } else {
           break;
@@ -234,7 +234,7 @@ class KretaClient {
 
         if (res.statusCode == 401) {
           headerMap.remove("authorization");
-          await refreshLogin();
+          //await refreshLogin();
         } else {
           break;
         }