diff --git a/src/routing_layer/topo_group.c b/src/routing_layer/topo_group.c
index da64ea664..c90647130 100644
--- a/src/routing_layer/topo_group.c
+++ b/src/routing_layer/topo_group.c
@@ -682,11 +682,11 @@ fail:
 static void topo_group_destroy(struct TOPO_GROUP* group) {
     if (!group) return;
     group->stopping = 1;
-    /* Отменить и локальные ожидания без router-сессии до освобождения ресурсов группы. */
-    topo_group_revalidate_members(group);
     multicast_close_group(group->instance, group->group_id);
     nat_detection_cancel_group(group->instance->nat_det, group->group_id);
     stream_cancel_group(group->instance, group->group_id);
+    /* Отменить и локальные ожидания без router-сессии до освобождения ресурсов группы. */
+    topo_group_revalidate_members(group);
     DEBUG_INFO(DEBUG_CATEGORY_SYS, "[GRP_DESTROY] 0 enter grp=%p id=0x%016llx rec_list=%p connect=%p",
                group, (unsigned long long)group->group_id, group->recovery, group->connect);
 
diff --git a/tests/test_nat_detection.c b/tests/test_nat_detection.c
index 2d942c2e9..be2584bed 100644
--- a/tests/test_nat_detection.c
+++ b/tests/test_nat_detection.c
@@ -316,6 +316,22 @@ static void test_all_groups_tcp(void) {
     do { uasync_poll(fixture.ua, 10); assert(!nat_detection_get_status(owner->nat_det, socket, &status)); }
     while (get_time_tb() < end && (status.round == old_round || !status.phase));
     assert(status.phase && status.group_id == 42);
+    char sql[160]; snprintf(sql, sizeof(sql), "UPDATE peers_42 SET admitted=0 WHERE node_id=%lld", (long long)helper->node_id);
+    assert(sqlite3_exec(owner->topo_sqlite_db, sql, NULL, NULL, NULL) == SQLITE_OK);
+    topo_group_revalidate_members(groups[0]);
+    assert(!nat_detection_get_status(owner->nat_det, socket, &status) && !status.phase && !status.cycling &&
+           status.reason == NAT_REASON_CANCELLED);
+    assert(socket->address_profile.mapping == ADDRESS_MAP_UNCHANGED && socket->address_profile.inbound == ADDRESS_IN_OPEN);
+    assert(ab->links_up && topo_group_peer_ready(topo_groups_find(owner->topo_groups, TOPO_GROUP_UTUN), observer->node_id));
+    DEBUG_INFO(DEBUG_CATEGORY_NAT, "PASS NAT revoked third participant cancels owner round; profile and shared UTUN remain");
+    snprintf(sql, sizeof(sql), "UPDATE peers_42 SET admitted=1 WHERE node_id=%lld", (long long)helper->node_id);
+    assert(sqlite3_exec(owner->topo_sqlite_db, sql, NULL, NULL, NULL) == SQLITE_OK);
+    old_round = status.round;
+    assert(!nat_detection_request_check_socket(owner->nat_det, socket, observer->node_id));
+    end = get_time_tb() + 30000;
+    do { uasync_poll(fixture.ua, 10); assert(!nat_detection_get_status(owner->nat_det, socket, &status)); }
+    while (get_time_tb() < end && (status.round == old_round || !status.phase));
+    assert(status.phase && status.group_id == 42);
     topo_groups_remove_group(owner->topo_groups, 42);
     assert(!nat_detection_get_status(owner->nat_det, socket, &status) && !status.phase && !status.group_id);
     assert(socket->address_profile.mapping == ADDRESS_MAP_UNCHANGED && socket->address_profile.inbound == ADDRESS_IN_OPEN);