diff --git a/api/icsneo/icsneo.cpp b/api/icsneo/icsneo.cpp
index 6e850a7..97b84cc 100644
--- a/api/icsneo/icsneo.cpp
+++ b/api/icsneo/icsneo.cpp
@@ -153,20 +153,20 @@ ICSNEO_API icsneo_error_t icsneo_open(icsneo_device_t* device) {
     if (!dev->open()) {
         return icsneo_error_open_failed;
     }
-    // Go online
-    if ((device->options & icsneo_open_options_go_online) == icsneo_open_options_go_online && !dev->goOnline()) {
+    // Sync RTC
+    if ((device->options & icsneo_open_options_sync_rtc) == icsneo_open_options_sync_rtc && !dev->setRTC(std::chrono::system_clock::now())) {
         dev->close();
-        return icsneo_error_go_online_failed;
+        return icsneo_error_sync_rtc_failed;
     }
     // Enable message polling
     if ((device->options & icsneo_open_options_enable_message_polling) == icsneo_open_options_enable_message_polling && !dev->enableMessagePolling()) {
         dev->close();
         return icsneo_error_enable_message_polling_failed;
     }
-    // Sync RTC
-    if ((device->options & icsneo_open_options_sync_rtc) == icsneo_open_options_sync_rtc && !dev->setRTC(std::chrono::system_clock::now())) {
+    // Go online
+    if ((device->options & icsneo_open_options_go_online) == icsneo_open_options_go_online && !dev->goOnline()) {
         dev->close();
-        return icsneo_error_sync_rtc_failed;
+        return icsneo_error_go_online_failed;
     }
     return icsneo_error_success;
 }