diff --git a/td/telegram/AuthManager.cpp b/td/telegram/AuthManager.cpp
index 5a8206a77..24702f2f6 100644
--- a/td/telegram/AuthManager.cpp
+++ b/td/telegram/AuthManager.cpp
@@ -59,6 +59,7 @@ AuthManager::AuthManager(int32 api_id, const string &api_hash, ActorShared<> par
       ContactsManager::send_get_me_query(
           td_, PromiseCreator::lambda([this](Result<Unit> result) { update_state(State::Ok); }));
     }
+    G()->net_query_dispatcher().check_authorization_is_ok();
   } else if (auth_str == "logout") {
     LOG(WARNING) << "Continue to log out";
     update_state(State::LoggingOut);
diff --git a/td/telegram/net/DcAuthManager.cpp b/td/telegram/net/DcAuthManager.cpp
index deae91ca1..a61bd5b62 100644
--- a/td/telegram/net/DcAuthManager.cpp
+++ b/td/telegram/net/DcAuthManager.cpp
@@ -6,6 +6,7 @@
 //
 #include "td/telegram/net/DcAuthManager.h"
 
+#include "td/telegram/ConfigShared.h"
 #include "td/telegram/Global.h"
 #include "td/telegram/net/AuthDataShared.h"
 #include "td/telegram/net/NetQuery.h"
@@ -240,4 +241,11 @@ void DcAuthManager::loop() {
   }
 }
 
+void DcAuthManager::check_authorization_is_ok() {
+  auto main_dc = find_dc(main_dc_id_.get_raw_id());
+  if (!main_dc || main_dc->auth_key_state != AuthKeyState::OK) {
+    G()->shared_config().set_option_string("auth", "Authorization check failed in DcAuthManager");
+  }
+}
+
 }  // namespace td
diff --git a/td/telegram/net/DcAuthManager.h b/td/telegram/net/DcAuthManager.h
index 96473428e..ecefeb694 100644
--- a/td/telegram/net/DcAuthManager.h
+++ b/td/telegram/net/DcAuthManager.h
@@ -31,6 +31,8 @@ class DcAuthManager final : public NetQueryCallback {
   void update_main_dc(DcId new_main_dc_id);
   void destroy(Promise<> promise);
 
+  void check_authorization_is_ok();
+
  private:
   struct DcInfo {
     DcId dc_id;
diff --git a/td/telegram/net/NetQueryDispatcher.cpp b/td/telegram/net/NetQueryDispatcher.cpp
index e9be4cd50..686dbee01 100644
--- a/td/telegram/net/NetQueryDispatcher.cpp
+++ b/td/telegram/net/NetQueryDispatcher.cpp
@@ -352,4 +352,8 @@ void NetQueryDispatcher::set_main_dc_id(int32 new_main_dc_id) {
   G()->td_db()->get_binlog_pmc()->set("main_dc_id", to_string(main_dc_id_.load(std::memory_order_relaxed)));
 }
 
+void NetQueryDispatcher::check_authorization_is_ok() {
+  send_closure(dc_auth_manager_, &DcAuthManager::check_authorization_is_ok);
+}
+
 }  // namespace td
diff --git a/td/telegram/net/NetQueryDispatcher.h b/td/telegram/net/NetQueryDispatcher.h
index d771009fc..5b1eacc59 100644
--- a/td/telegram/net/NetQueryDispatcher.h
+++ b/td/telegram/net/NetQueryDispatcher.h
@@ -58,6 +58,7 @@ class NetQueryDispatcher {
   }
 
   void set_main_dc_id(int32 new_main_dc_id);
+  void check_authorization_is_ok();
 
  private:
   std::atomic<bool> stop_flag_{false};