diff --git a/src/routing_layer/topo_group.c b/src/routing_layer/topo_group.c
index fd52e80f..c28e4b9b 100644
--- a/src/routing_layer/topo_group.c
+++ b/src/routing_layer/topo_group.c
@@ -374,7 +374,8 @@ struct TOPO_GROUPS* topo_groups_init(struct UTUN_INSTANCE* instance) {
     if (instance->config && instance->config->global.db_path[0]) {
         char db_file[512];
         snprintf(db_file, sizeof(db_file), "%s/chats.db", instance->config->global.db_path);
-        int rc = sqlite3_open(db_file, &instance->topo_sqlite_db);
+        int rc = sqlite3_open_v2(db_file, &instance->topo_sqlite_db,
+                                 SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE | SQLITE_OPEN_FULLMUTEX, NULL);
         if (rc == SQLITE_OK && instance->topo_sqlite_db) {
             sqlite3_exec(instance->topo_sqlite_db, "PRAGMA journal_mode=WAL", NULL, NULL, NULL);
             sqlite3_exec(instance->topo_sqlite_db, "PRAGMA foreign_keys=ON", NULL, NULL, NULL);
diff --git a/tools/chatgui/transport/utun_node.cpp b/tools/chatgui/transport/utun_node.cpp
index a77594f8..443b8fcd 100644
--- a/tools/chatgui/transport/utun_node.cpp
+++ b/tools/chatgui/transport/utun_node.cpp
@@ -211,9 +211,25 @@ void UtunNode::runLoop() {
     }
     m_ua = ua;
 
-    m_instance = utun_instance_create(ua, m_configPath.toUtf8().constData());
+    /* Читаем конфиг и выставляем db_path ДО создания инстанса, чтобы topo_groups_init
+     * (внутри utun_instance_create_from_config) открыл общую SQLite-БД раньше auto_socket_init —
+     * иначе auto_socket не сможет сохранить/переиспользовать порты (БД ещё не открыта). */
+    struct utun_config* cfg = parse_config(m_configPath.toUtf8().constData());
+    if (!cfg) {
+        QMetaObject::invokeMethod(this, [this] { emit error("parse_config failed"); });
+        uasync_destroy(ua, 0);
+        m_ua = nullptr;
+        g_currentNode = nullptr;
+        return;
+    }
+    cfg->global.db_sync_enabled = 1;
+    if (!m_dbPath.isEmpty())
+        snprintf(cfg->global.db_path, sizeof(cfg->global.db_path), "%s", m_dbPath.toUtf8().constData());
+
+    m_instance = utun_instance_create_from_config(ua, cfg);
     if (!m_instance) {
-        QMetaObject::invokeMethod(this, [this] { emit error("utun_instance_create failed"); });
+        free_config(cfg);
+        QMetaObject::invokeMethod(this, [this] { emit error("utun_instance_create_from_config failed"); });
         uasync_destroy(ua, 0);
         m_ua = nullptr;
         g_currentNode = nullptr;
@@ -222,33 +238,6 @@ void UtunNode::runLoop() {
 
     m_instance->test_user_ptr = this;
 
-    /* enable db_sync for chat message P2P sync */
-    m_instance->config->global.db_sync_enabled = 1;
-    if (!m_dbPath.isEmpty())
-        snprintf(m_instance->config->global.db_path, sizeof(m_instance->config->global.db_path),
-                 "%s", m_dbPath.toUtf8().constData());
-
-    /* topo_groups_init did not open topo_sqlite_db because db_path was empty at that time.
-     * Open the single shared SQLite connection here with FULLMUTEX (GUI reads from another thread).
-     * db_sync_init and chat_core_init will reuse this handle. */
-    if (m_instance->config->global.db_path[0] && !m_instance->topo_sqlite_db) {
-        char db_file[512];
-        snprintf(db_file, sizeof(db_file), "%s/chats.db", m_instance->config->global.db_path);
-        int rc = sqlite3_open_v2(db_file, &m_instance->topo_sqlite_db,
-            SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE | SQLITE_OPEN_FULLMUTEX, NULL);
-        if (rc == SQLITE_OK && m_instance->topo_sqlite_db) {
-            sqlite3_exec(m_instance->topo_sqlite_db, "PRAGMA journal_mode=WAL", NULL, NULL, NULL);
-            sqlite3_exec(m_instance->topo_sqlite_db, "PRAGMA foreign_keys=ON", NULL, NULL, NULL);
-            sqlite3_exec(m_instance->topo_sqlite_db, "PRAGMA synchronous=NORMAL", NULL, NULL, NULL);
-            sqlite3_exec(m_instance->topo_sqlite_db, "PRAGMA wal_autocheckpoint=10000", NULL, NULL, NULL);
-            topo_node_sqlite_init(m_instance->topo_sqlite_db);
-            DEBUG_DEBUG(DEBUG_CATEGORY_GENERAL, "SQLite (shared): %s db=%p", db_file, (void*)m_instance->topo_sqlite_db);
-        } else {
-            DEBUG_ERROR(DEBUG_CATEGORY_GENERAL, "SQLite open failed: %s rc=%d", db_file, rc);
-            if (m_instance->topo_sqlite_db) { sqlite3_close(m_instance->topo_sqlite_db); m_instance->topo_sqlite_db = NULL; }
-        }
-    }
-
     /* set ua for gui_bridge before init, so GUI can post */
     gui_bridge_set_uasync(ua);