diff --git a/lib/debug_config.c b/lib/debug_config.c
index f799cdf..0c99857 100644
--- a/lib/debug_config.c
+++ b/lib/debug_config.c
@@ -38,10 +38,10 @@ void log_dump(const char* prefix, const uint8_t* data, size_t len) {
     DEBUG_INFO(DEBUG_CATEGORY_ETCP, "%s: len=%zu hex=%s", prefix, len, hex_buf);
     
     // Additional debug info for first few bytes
-    if (len >= 2) {
-        DEBUG_DEBUG(DEBUG_CATEGORY_ETCP, "%s: first_bytes=%02x%02x last_bytes=%02x%02x", 
-                   prefix, data[0], data[1], data[len-2], data[len-1]);
-    }
+//    if (len >= 2) {
+//        DEBUG_DEBUG(DEBUG_CATEGORY_ETCP, "%s: first_bytes=%02x%02x last_bytes=%02x%02x", 
+//                   prefix, data[0], data[1], data[len-2], data[len-1]);
+//    }
 }
 
 
diff --git a/lib/ll_queue.c b/lib/ll_queue.c
index dce4628..c392684 100755
--- a/lib/ll_queue.c
+++ b/lib/ll_queue.c
@@ -117,7 +117,7 @@ void* queue_data_new(size_t data_size) {
     entry->ref_count = 1;  // Единственная ссылка - на сам элемент
     entry->pool = NULL;   // Выделено через malloc
     
-    DEBUG_DEBUG(DEBUG_CATEGORY_LL_QUEUE, "queue_data_new: created entry %p, size=%zu", entry, data_size);
+//    DEBUG_DEBUG(DEBUG_CATEGORY_LL_QUEUE, "queue_data_new: created entry %p, size=%zu", entry, data_size);
     
     return (void*)(entry + xxx);
 }
@@ -133,7 +133,7 @@ void* queue_data_new_from_pool(struct memory_pool* pool) {
     entry->ref_count = 1;  // Единственная ссылка - на сам элемент
     entry->pool = pool;   // Выделено из пула
     
-    DEBUG_DEBUG(DEBUG_CATEGORY_LL_QUEUE, "queue_data_new_from_pool: created entry %p from pool %p", entry, pool);
+//    DEBUG_DEBUG(DEBUG_CATEGORY_LL_QUEUE, "queue_data_new_from_pool: created entry %p from pool %p", entry, pool);
     
     return (void*)(entry + xxx);
 }
@@ -143,7 +143,7 @@ void queue_data_free(void* data) {
     
     struct ll_entry* entry = data_to_entry(data);
     
-    DEBUG_DEBUG(DEBUG_CATEGORY_LL_QUEUE, "queue_data_free: freeing entry %p, ref_count=%d", entry, entry->ref_count);
+//    DEBUG_DEBUG(DEBUG_CATEGORY_LL_QUEUE, "queue_data_free: freeing entry %p, ref_count=%d", entry, entry->ref_count);
     
     if (--entry->ref_count <= 0) {
         if (entry->pool) {
@@ -185,8 +185,7 @@ static void remove_from_hash(struct ll_queue* q, struct ll_entry* entry) {
 static void check_waiters(struct ll_queue* q) {
     if (!q) return;
     
-    DEBUG_DEBUG(DEBUG_CATEGORY_LL_QUEUE, "check_waiters: checking waiters, count=%d, bytes=%zu",
-                q->count, q->total_bytes);
+//    DEBUG_DEBUG(DEBUG_CATEGORY_LL_QUEUE, "check_waiters: checking waiters, count=%d, bytes=%zu", q->count, q->total_bytes);
     
     struct queue_waiter* waiter = &q->waiter;
     
@@ -230,7 +229,7 @@ int queue_data_put(struct ll_queue* q, void* data, uint32_t id) {
     // ВАЖНО: НЕ увеличиваем ref_count - элемент просто находится в очереди
 
     size_t send_q_bytes = queue_total_bytes(q);
-    DEBUG_DEBUG(DEBUG_CATEGORY_ETCP, "qqqq check total bytes: new_q_len=%d element_size:%d", send_q_bytes, entry->size);
+//    DEBUG_DEBUG(DEBUG_CATEGORY_ETCP, "check total bytes: new_q_len=%d element_size:%d", send_q_bytes, entry->size);
     
     add_to_hash(q, entry);
     
@@ -398,7 +397,7 @@ int queue_remove_data(struct ll_queue* q, void* data) {
     
     remove_from_hash(q, entry);
     
-    DEBUG_DEBUG(DEBUG_CATEGORY_LL_QUEUE, "queue_remove_data: removed entry %p (id=%u), count=%d", entry, entry->id, q->count);
+//    DEBUG_DEBUG(DEBUG_CATEGORY_LL_QUEUE, "queue_remove_data: removed entry %p (id=%u), count=%d", entry, entry->id, q->count);
     
     return 0;
 }
\ No newline at end of file
diff --git a/src/etcp_connections.c b/src/etcp_connections.c
index d1357df..45cf940 100644
--- a/src/etcp_connections.c
+++ b/src/etcp_connections.c
@@ -546,6 +546,11 @@ static void etcp_connections_read_callback(int fd, void* arg) {
             char buf[128];
             addr_to_string(&addr, buf, sizeof(buf));
             DEBUG_DEBUG(DEBUG_CATEGORY_CONNECTION, "New connection from %s peer_id=%ld etcp=%p", buf, peer_id, conn);
+            // Add connection to instance list
+            conn->next = e_sock->instance->connections;
+            e_sock->instance->connections = conn;
+            e_sock->instance->connections_count++;
+            DEBUG_INFO(DEBUG_CATEGORY_CONNECTION, "Added incoming connection %p to instance, total count: %d", conn, e_sock->instance->connections_count);
             }
         else {// check keys если существующее подключение
             if (memcmp(conn->crypto_ctx.peer_public_key, sc.peer_public_key, SC_PUBKEY_SIZE)) { errorcode=5; DEBUG_ERROR(DEBUG_CATEGORY_CRYPTO, "etcp_connections_read_callback: peer key mismatch for node %llu", (unsigned long long)peer_id); goto ec_fr; }// коллизия - peer id совпал а ключи разные.
diff --git a/tests/test_config_debug b/tests/test_config_debug
deleted file mode 100755
index a1321c9..0000000
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diff --git a/tests/test_crypto b/tests/test_crypto
deleted file mode 100755
index 6ebbe9d..0000000
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diff --git a/tests/test_debug_categories b/tests/test_debug_categories
deleted file mode 100755
index 634ee65..0000000
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diff --git a/tests/test_ecc_encrypt b/tests/test_ecc_encrypt
deleted file mode 100755
index 11a709f..0000000
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diff --git a/tests/test_etcp_crypto b/tests/test_etcp_crypto
deleted file mode 100755
index 24fb7f2..0000000
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diff --git a/tests/test_etcp_minimal b/tests/test_etcp_minimal
deleted file mode 100755
index f65c8a0..0000000
Binary files a/tests/test_etcp_minimal and /dev/null differ
diff --git a/tests/test_etcp_simple_traffic b/tests/test_etcp_simple_traffic
index 0b45566..d4a9ceb 100755
Binary files a/tests/test_etcp_simple_traffic and b/tests/test_etcp_simple_traffic differ
diff --git a/tests/test_etcp_simple_traffic.c b/tests/test_etcp_simple_traffic.c
index d774906..613bded 100644
--- a/tests/test_etcp_simple_traffic.c
+++ b/tests/test_etcp_simple_traffic.c
@@ -155,25 +155,31 @@ static void check_packet_received(void) {
     DEBUG_DEBUG(DEBUG_CATEGORY_ETCP, "check_packet_received: Server output_queue count: %d", queue_entry_count(conn->output_queue));
     
     // Check if there's any packet in output queue
-    void* data = queue_data_get(conn->output_queue);
-    if (data) {
+    struct ETCP_FRAGMENT* pkt = queue_data_get(conn->output_queue);
+    if (pkt) {
         DEBUG_DEBUG(DEBUG_CATEGORY_ETCP, "check_packet_received: Found packet in output queue");
-        
-        // В новом API размер данных нужно получать из структуры
-        struct ll_entry* entry = (struct ll_entry*)data - 1;
-        size_t size = entry->size;
-        
+
+        // ETCP_FRAGMENT содержит ll_entry в начале, данные в pkt_data
+        size_t size = pkt->ll.size;
+        uint8_t* data = pkt->pkt_data;
+
         DEBUG_DEBUG(DEBUG_CATEGORY_ETCP, "check_packet_received: Packet size=%zu, expected=%d", size, PACKET_SIZE);
-        DEBUG_DEBUG(DEBUG_CATEGORY_ETCP, "check_packet_received: First byte received=%02X, expected=%02X", 
-                    ((uint8_t*)data)[0], test_packet_data[0]);
-        
-        if (size == PACKET_SIZE && memcmp(data, test_packet_data, PACKET_SIZE) == 0) {
+        DEBUG_DEBUG(DEBUG_CATEGORY_ETCP, "check_packet_received: First byte received=%02X, expected=%02X",
+                    data[0], test_packet_data[0]);
+
+        // Проверяем только данные (первые PACKET_SIZE байт), размер может включать ETCP заголовки
+        if (size >= PACKET_SIZE && memcmp(data, test_packet_data, PACKET_SIZE) == 0) {
             packet_received = 1;
             DEBUG_INFO(DEBUG_CATEGORY_ETCP, "check_packet_received: SUCCESS - Packet received in server output queue (%zu bytes), data matches", size);
         } else {
-            DEBUG_WARN(DEBUG_CATEGORY_ETCP, "check_packet_received: Packet received but size mismatch or data differs (expected %d, got %zu)", PACKET_SIZE, size);
+            DEBUG_WARN(DEBUG_CATEGORY_ETCP, "check_packet_received: Packet received but data differs (expected %d bytes, got %zu)", PACKET_SIZE, size);
+        }
+
+        // Освобождаем ETCP_FRAGMENT и данные
+        if (pkt->pkt_data) {
+            memory_pool_free(conn->instance->data_pool, pkt->pkt_data);
         }
-        queue_data_free(data);
+        queue_data_free(pkt);
     } else {
         DEBUG_TRACE(DEBUG_CATEGORY_ETCP, "check_packet_received: No packet found in output queue");
     }
diff --git a/tests/test_etcp_two_instances b/tests/test_etcp_two_instances
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diff --git a/tests/test_intensive_memory_pool b/tests/test_intensive_memory_pool
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diff --git a/tests/test_ll_queue b/tests/test_ll_queue
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diff --git a/tests/test_memory_pool_and_config b/tests/test_memory_pool_and_config
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diff --git a/tests/test_packet_dump b/tests/test_packet_dump
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diff --git a/tests/test_u_async_comprehensive b/tests/test_u_async_comprehensive
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