diff --git a/src/chat/chat_sync.c b/src/chat/chat_sync.c
index d8fd59df..0ebdbfd5 100644
--- a/src/chat/chat_sync.c
+++ b/src/chat/chat_sync.c
@@ -6,7 +6,7 @@
 #include "chat_event.h"
 #include "../routing_layer/topo_node_sqlite.h"
 #include "../routing_layer/topo_group.h"
-#include "../routing_layer/conn_mgr.h"
+#include "../routing_layer/topo_group_invite.h"
 #include "../routing_layer/topo_group_connect.h"
 #include "../../lib/json_flat.h"
 #include "member_sync.h"
@@ -86,7 +86,6 @@ static const char* cs_msg_name(uint8_t type) {
     case CS_MSG_WELCOME:            return "WELCOME";
     case CS_MSG_PEER_UPSERT:        return "PEER_UPSERT";
     case CS_MSG_ERROR:              return "ERROR";
-    case CS_MSG_PEER_REMOVE:        return "PEER_REMOVE";
     case CS_MSG_CHANNEL_INVITE:     return "CHANNEL_INVITE";
     default:                        return "???";
     }
@@ -151,8 +150,6 @@ static void cs_handle_welcome(struct chat_sync* cs, uint64_t peer,
     const char* ch_id, const uint8_t* pl, size_t len);
 static void cs_handle_peer_upsert(struct chat_sync* cs, uint64_t peer,
     const char* ch_id, const uint8_t* pl, size_t len);
-static void cs_handle_peer_remove(struct chat_sync* cs, uint64_t peer,
-    const char* ch_id, const uint8_t* pl, size_t len);
 static void cs_handle_channel_invite(struct chat_sync* cs, uint64_t peer,
     const char* ch_id, const uint8_t* pl, size_t len);
 static int cs_send_channel_invite(struct chat_sync* cs, struct UTUN_INSTANCE* inst,
@@ -202,7 +199,6 @@ static void chat_sync_recv_cb(struct ETCP_CONN* conn, struct ll_entry* entry) {
         g_cs->pending_invite_node_id = 0; g_cs->pending_invite_ch_id = 0;
         break;
     }
-    case CS_MSG_PEER_REMOVE:      cs_handle_peer_remove(g_cs, peer, ch_id, pl, plen); break;
     case CS_MSG_CHANNEL_INVITE:   cs_handle_channel_invite(g_cs, peer, ch_id, pl, plen); break;
     default:                      DEBUG_WARN(DEBUG_CATEGORY_MEMBER_SYNC, "%s: UNKNOWN msg type=%02x from=%016llx", CS_ID, type, (unsigned long long)peer); break;
     }
@@ -219,7 +215,7 @@ static void cs_info_req_timeout_cb(void* arg) {
                CS_ID, (unsigned long long)cs->pending_invite_node_id,
                (unsigned long long)cs->pending_invite_ch_id);
     uint8_t err[20]; memcpy(err, &cs->pending_invite_node_id, 8);
-    int r = CONN_EVENT_TIMEOUT; memcpy(err + 8, &r, 4);
+    int r = 2; memcpy(err + 8, &r, 4);  /* timeout */
     memcpy(err + 12, &cs->pending_invite_ch_id, 8);
     chat_event_post(CHAT_EVT_CONNECT_RESULT, err, 20);
     cs->pending_invite_node_id = 0;
@@ -234,7 +230,7 @@ static void cs_join_timeout_cb(void* arg) {
     DEBUG_WARN(DEBUG_CATEGORY_MEMBER_SYNC, "%s: CHANNEL_JOIN timeout peer=%016llx ch=%llu",
                CS_ID, (unsigned long long)peer, (unsigned long long)cs->pending_invite_ch_id);
     uint8_t err[20]; memcpy(err, &peer, 8);
-    int r = CONN_EVENT_TIMEOUT; memcpy(err + 8, &r, 4);
+    int r = 2; memcpy(err + 8, &r, 4);  /* timeout */
     memcpy(err + 12, &cs->pending_invite_ch_id, 8);
     chat_event_post(CHAT_EVT_CONNECT_RESULT, err, 20);
     cs->pending_invite_node_id = 0;
@@ -250,7 +246,7 @@ static void cs_invite_send_timeout_cb(void* arg) {
     DEBUG_WARN(DEBUG_CATEGORY_MEMBER_SYNC, "%s: CHANNEL_INVITE timeout — joiner did not respond peer=%016llx ch=%llu",
                CS_ID, (unsigned long long)peer, (unsigned long long)cs->pending_invite_ch_id);
     uint8_t err[20]; memcpy(err, &peer, 8);
-    int r = CONN_EVENT_TIMEOUT; memcpy(err + 8, &r, 4);
+    int r = 2; memcpy(err + 8, &r, 4);  /* timeout */
     memcpy(err + 12, &cs->pending_invite_ch_id, 8);
     chat_event_post(CHAT_EVT_CONNECT_RESULT, err, 20);
     cs->pending_invite_node_id = 0;
@@ -527,12 +523,8 @@ static void cs_on_conn_down(struct ETCP_CONN* conn, int event, void* arg) { (voi
         int found = 0;
         for (int j = 0; j < g_cs->channels[i].peer_count; j++)
             if (g_cs->channels[i].peer_ids[j] == peer) { found = 1; break; }
-        if (found) {
+        if (found)
             g_cs->channels[i].synced = CS_SYNC_NONE;
-            uint8_t rem[9]; rem[0] = CS_MSG_PEER_REMOVE;
-            memcpy(rem + 1, &peer, 8);
-            cs_propagate(g_cs, g_cs->channels[i].channel_id, peer, rem, 9);
-        }
     }
 }
 
@@ -697,35 +689,17 @@ struct chat_invite {
     int      addr_count;
 };
 
-/* коллбэк invite-подключения: conn_mgr сам всё делает, здесь только лог результата.
-   реальный join-протокол запускается через cs_on_conn_up (глобальный callback),
-   сохранение в БД — через cs_handle_channel_info_resp после верификации */
-static void cs_invite_conn_cb(struct CONN_MGR_HANDLE* h,
-                               uint64_t node_id, uint64_t group_id,
-                               enum conn_mgr_event event, void* arg) {
-    (void)arg;
-    if (event == CONN_EVENT_JOIN) {
+/* коллбэк invite-подключения (topo_group_invite): nq->handle уже установлен модулем,
+   здесь только лог результата. Реальный join-протокол запускается через cs_on_conn_up
+   (глобальный callback), сохранение в БД — через cs_handle_channel_info_resp. */
+static void cs_tgi_cb(uint64_t node_id, uint64_t group_id, int event, void* arg) {
+    (void)arg; (void)group_id;
+    if (event == TGI_EVENT_JOIN) {
         DEBUG_INFO(DEBUG_CATEGORY_GENERAL, "channel invite: JOINED — connected to 0x%016llx, online now",
                    (unsigned long long)node_id);
-        struct UTUN_INSTANCE* inst = chat_core_get_inst();
-        if (inst && inst->topo_groups) {
-            struct TOPO_GROUP* g = topo_groups_find(inst->topo_groups, group_id);
-            if (g) {
-                struct TOPO_GROUP_NODE* nq = topo_node_find_by_id(g, node_id);
-                if (nq) nq->handle = h;
-            }
-        }
-    } else if (event == CONN_EVENT_TIMEOUT) {
+    } else {
         DEBUG_WARN(DEBUG_CATEGORY_GENERAL, "channel invite: TIMEOUT — could not connect to 0x%016llx",
                    (unsigned long long)node_id);
-        struct UTUN_INSTANCE* inst = chat_core_get_inst();
-        if (inst && inst->topo_groups) {
-            struct TOPO_GROUP* g = topo_groups_find(inst->topo_groups, group_id);
-            if (g) {
-                struct TOPO_GROUP_NODE* nq = topo_node_find_by_id(g, node_id);
-                if (nq) nq->handle = NULL;
-            }
-        }
     }
 }
 
@@ -788,13 +762,13 @@ static void cm_invite_trampoline(void* arg) {
         u_free(ni); u_free(w); return;
     }
 
-    /* conn_mgr_open_invite сам создаст TOPO_GROUP, найдёт/создаст соединение, запустит INVITE_INFO.
-       DB channel + sync создаются позже в cs_handle_channel_info_resp после верификации */
+    /* topo_group_invite_join сам создаст TOPO_GROUP, найдёт/создаст соединение (ncd),
+       запустит INVITE_INFO. DB channel + sync создаются позже в cs_handle_channel_info_resp после верификации */
     DEBUG_INFO(DEBUG_CATEGORY_GENERAL, "channel invite: connecting to 0x%016llx via %d addresses",
                (unsigned long long)node_id, inv->addr_count);
-    int r = conn_mgr_open_invite(inst, channel_id, ni, node_id, cs_invite_conn_cb, NULL, NULL);
+    int r = topo_group_invite_join(inst, channel_id, ni, node_id, cs_tgi_cb, NULL);
     if (r < 0) {
-        DEBUG_ERROR(DEBUG_CATEGORY_GENERAL, "channel invite: FAILED — conn_mgr_open_invite error=%d", r);
+        DEBUG_ERROR(DEBUG_CATEGORY_GENERAL, "channel invite: FAILED — topo_group_invite_join error=%d", r);
     }
 
     /* free caller-owned ni */
@@ -1412,28 +1386,6 @@ static void cs_handle_peer_upsert(struct chat_sync* cs, uint64_t peer,
                CS_ID, (unsigned long long)node_id, ch_id);
 }
 
-/* ─── PEER_REMOVE (0x0E) ─── */
-
-static void cs_handle_peer_remove(struct chat_sync* cs, uint64_t peer,
-                                   const char* ch_id, const uint8_t* pl, size_t len) {
-    if (len < 8) { DEBUG_WARN(DEBUG_CATEGORY_MEMBER_SYNC, "%s: PEER_REMOVE too short len=%zu", CS_ID, len); return; }
-    uint64_t node_id; memcpy(&node_id, pl, 8);
-
-    sqlite3* db = cs->inst->topo_sqlite_db;
-    topo_node_sqlite_member_del(db, ch_id, node_id);
-    cs_refresh_channels(cs);
-
-    { uint8_t mevt[1 + 64 + 8]; uint8_t ml = (uint8_t)strlen(ch_id);
-      mevt[0] = ml; memcpy(mevt + 1, ch_id, ml);
-      memcpy(mevt + 1 + ml, &node_id, 8);
-      chat_event_post(CHAT_EVT_MEMBER_REMOVED, mevt, 1 + ml + 8); }
-
-    cs_propagate(cs, ch_id, peer, pl, len);
-
-    DEBUG_INFO(DEBUG_CATEGORY_MEMBER_SYNC, "%s: PEER_REMOVE node=0x%016llx ch=%s",
-               CS_ID, (unsigned long long)node_id, ch_id);
-}
-
 /* ─── CHANNEL_INVITE (0x0F): inviter → joiner (push-приглашение в канал) ─── */
 
 static void cs_handle_channel_invite(struct chat_sync* cs, uint64_t peer,
@@ -1593,7 +1545,7 @@ void chat_sync_invite_to_channel(struct UTUN_INSTANCE* inst, const char* ch_id,
     /* Check if already connected */
     struct ETCP_CONN* conn = cs_find_conn_for_node(inst, target_node_id);
     if (!conn || !conn->links_up || !conn->initialized) {
-        /* Try to connect via conn_mgr */
+        /* Try to connect via direct (ncd) */
         if (inst->topo_groups) {
             struct TOPO_GROUP* g = topo_groups_find(inst->topo_groups, channel_id);
             if (g) {
@@ -1607,16 +1559,10 @@ void chat_sync_invite_to_channel(struct UTUN_INSTANCE* inst, const char* ch_id,
                     return;
                 }
             }
-            /* Use conn_mgr_open_invite with channel group context */
-            struct TOPO_NODE* ni = u_calloc(1, sizeof(*ni));
-            if (ni) {
-                ni->node_id = target_node_id;
-                /* Addresses loaded from node_addresses in DB by conn_mgr */
-                int r = conn_mgr_open_invite(inst, channel_id, ni, target_node_id, NULL, NULL, NULL);
-                if (r < 0) {
-                    DEBUG_ERROR(DEBUG_CATEGORY_MEMBER_SYNC, "%s: invite_to_channel conn_mgr_open_invite failed rc=%d", CS_ID, r);
-                }
-                u_free(ni);
+            /* Адреса грузятся из node_addresses в БД внутри node_conn_direct_open */
+            int r = topo_group_invite_to_channel(inst, channel_id, NULL, target_node_id);
+            if (r < 0) {
+                DEBUG_ERROR(DEBUG_CATEGORY_MEMBER_SYNC, "%s: invite_to_channel topo_group_invite_to_channel failed rc=%d", CS_ID, r);
             }
         } else {
             DEBUG_WARN(DEBUG_CATEGORY_MEMBER_SYNC, "%s: invite_to_channel — no topo_groups, cannot connect", CS_ID);
@@ -1725,9 +1671,9 @@ static void cs_invite_trampoline(void* arg) {
     g_cs->pending_invite_node_id = target_node_id;
     g_cs->pending_invite_is_inviter = 1;
 
-    int r = conn_mgr_open_invite(inst, channel_id, ni, target_node_id, cs_invite_conn_cb, NULL, NULL);
+    int r = topo_group_invite_to_channel(inst, channel_id, ni, target_node_id);
     if (r < 0) {
-        DEBUG_ERROR(DEBUG_CATEGORY_MEMBER_SYNC, "%s: invite_with_addrs conn_mgr_open_invite failed rc=%d", CS_ID, r);
+        DEBUG_ERROR(DEBUG_CATEGORY_MEMBER_SYNC, "%s: invite_with_addrs topo_group_invite_to_channel failed rc=%d", CS_ID, r);
         g_cs->pending_invite_node_id = 0; g_cs->pending_invite_ch_id = 0;
         g_cs->pending_invite_is_inviter = 0;
     }
diff --git a/src/chat/chat_sync.h b/src/chat/chat_sync.h
index de171b72..e0130d6c 100644
--- a/src/chat/chat_sync.h
+++ b/src/chat/chat_sync.h
@@ -52,7 +52,6 @@ struct UASYNC;
 #define CS_MSG_CHANNEL_JOIN     0x0B
 #define CS_MSG_WELCOME          0x0C
 #define CS_MSG_PEER_UPSERT      0x0D
-#define CS_MSG_PEER_REMOVE      0x0E
 #define CS_MSG_CHANNEL_INVITE   0x0F  /* push-invite: inviter → joiner */
 
 /* Protocol constants */
diff --git a/src/chat/member_sync.c b/src/chat/member_sync.c
index 2107793d..57791d9a 100644
--- a/src/chat/member_sync.c
+++ b/src/chat/member_sync.c
@@ -702,14 +702,6 @@ int member_sync_put(struct UTUN_INSTANCE* inst, const char* ch_id,
     return member_sync_apply_record(inst, ch_id, inst->node_id, &m);
 }
 
-int member_sync_del(struct UTUN_INSTANCE* inst, const char* ch_id, uint64_t member_id) {
-    if (!inst || !ch_id) { DEBUG_ERROR(DEBUG_CATEGORY_MEMBER_SYNC, "%s: del — inst=%p ch_id=%s", MS_ID, (void*)inst, ch_id ? ch_id : "(null)"); return -1; }
-    DEBUG_TRACE(DEBUG_CATEGORY_MEMBER_SYNC, "%s: del ch=%s nid=%016llx", MS_ID, ch_id, (unsigned long long)member_id);
-    sqlite3* db = _db(inst); if (!db) { DEBUG_ERROR(DEBUG_CATEGORY_MEMBER_SYNC, "%s: del — db is NULL ch=%s", MS_ID, ch_id); return -1; }
-    topo_node_sqlite_member_del(db, ch_id, member_id);
-    return merkle_sync_recompute_path(inst, ch_id, member_id);
-}
-
 int member_sync_count(struct UTUN_INSTANCE* inst, const char* ch_id) {
     sqlite3* db = _db(inst);
     if (!db || !ch_id) return 0;
diff --git a/src/chat/member_sync.h b/src/chat/member_sync.h
index 1ac7966a..c7d4ee01 100644
--- a/src/chat/member_sync.h
+++ b/src/chat/member_sync.h
@@ -27,9 +27,6 @@
  *   member_sync_set_online(inst, node_id, 1);  // online
  *   member_sync_set_online(inst, node_id, 0);  // offline
  *
- *   // удаление мембера
- *   member_sync_del(inst, ch_id, node_id);
- *
  *   // отмена синхронизации (коллбэк НЕ вызывается)
  *   member_sync_cancel(inst, peer, ch_id);
  *
@@ -160,9 +157,6 @@ int  member_sync_apply_record(struct UTUN_INSTANCE* inst, const char* ch_id,
 int  member_sync_send_to(struct UTUN_INSTANCE* inst, const char* ch_id,
          uint64_t member_id, uint64_t target_peer);
 
-/* Удалить мембера из канала и пересчитать дерево. */
-int  member_sync_del(struct UTUN_INSTANCE* inst, const char* ch_id, uint64_t member_id);
-
 /* Количество мемберов в канале (SELECT COUNT из peers_<ch_id>). */
 int  member_sync_count(struct UTUN_INSTANCE* inst, const char* ch_id);