diff --git a/src/core/nm-manager.c b/src/core/nm-manager.c
index 46adfd356b..6d8245c7d8 100644
--- a/src/core/nm-manager.c
+++ b/src/core/nm-manager.c
@@ -1456,7 +1456,11 @@ nm_manager_devcon_autoconnect_retries_blocked_until(NMManager            *self,
     nm_assert(NM_IS_SETTINGS_CONNECTION(sett_conn));
 
     if (device) {
-        data = _devcon_lookup_data(self, device, sett_conn, TRUE, TRUE);
+        data = _devcon_lookup_data(self, device, sett_conn, FALSE, FALSE);
+
+        if (!data)
+            return 0;
+
         return data->autoconnect.blocked_until_sec;
     }
 
@@ -1487,7 +1491,10 @@ nm_manager_devcon_autoconnect_is_blocked(NMManager            *self,
     if (nm_settings_connection_autoconnect_is_blocked(sett_conn))
         return TRUE;
 
-    data = _devcon_lookup_data(self, device, sett_conn, TRUE, TRUE);
+    data = _devcon_lookup_data(self, device, sett_conn, FALSE, FALSE);
+
+    if (!data)
+        return FALSE;
 
     if (data->autoconnect.blocked_reason != NM_SETTINGS_AUTOCONNECT_BLOCKED_REASON_NONE)
         return TRUE;
diff --git a/src/core/nm-policy.c b/src/core/nm-policy.c
index ae2c15f22a..7a4cab1d21 100644
--- a/src/core/nm-policy.c
+++ b/src/core/nm-policy.c
@@ -1758,11 +1758,13 @@ _connection_autoconnect_retries_set(NMPolicy             *self,
     if (tries == 0) {
         /* Schedule a handler to reset retries count */
         if (!priv->reset_connections_retries_idle_source) {
-            gint32 retry_time = nm_manager_devcon_autoconnect_retries_blocked_until(priv->manager,
-                                                                                    device,
-                                                                                    connection);
+            gint32 retry_time;
+
+            retry_time = nm_manager_devcon_autoconnect_retries_blocked_until(priv->manager,
+                                                                             device,
+                                                                             connection);
+            nm_assert(retry_time != 0);
 
-            g_warn_if_fail(retry_time != 0);
             priv->reset_connections_retries_idle_source = nm_g_timeout_add_seconds_source(
                 MAX(0, retry_time - nm_utils_get_monotonic_timestamp_sec()),
                 reset_connections_retries,