diff --git a/dap-sdk b/dap-sdk
index c427c109455c41aabb0cb21d35129b7628ee823c..32ee5dddfa5641119add13d4334d3f37a90c4313 160000
--- a/dap-sdk
+++ b/dap-sdk
@@ -1 +1 @@
-Subproject commit c427c109455c41aabb0cb21d35129b7628ee823c
+Subproject commit 32ee5dddfa5641119add13d4334d3f37a90c4313
diff --git a/modules/chain/dap_chain_ch.c b/modules/chain/dap_chain_ch.c
index 3bc47068d03e0e8e3fe6a266344a62c5cee80edf..24b663613ef51f12b13677c8bd317b44ec162433 100644
--- a/modules/chain/dap_chain_ch.c
+++ b/modules/chain/dap_chain_ch.c
@@ -801,7 +801,8 @@ void s_stream_ch_packet_in(dap_stream_ch_t* a_ch, void* a_arg)
             if(s_debug_more)
                 log_it(L_INFO, "In: UPDATE_GLOBAL_DB pkt data_size=%zu", l_chain_pkt_data_size);
             if (l_ch_chain->state != CHAIN_STATE_UPDATE_GLOBAL_DB_REMOTE ||
-                    memcmp(&l_ch_chain->request_hdr, &l_chain_pkt->hdr, sizeof(dap_chain_ch_pkt_t))) {
+                    memcmp(&l_ch_chain->request_hdr.net_id, &l_chain_pkt->hdr.net_id,
+                           sizeof(dap_chain_net_id_t) + sizeof(dap_chain_id_t) + sizeof(dap_chain_cell_id_t))) {
                 log_it(L_WARNING, "Can't process UPDATE_GLOBAL_DB request because its already busy with syncronization");
                 s_stream_ch_write_error_unsafe(a_ch, l_chain_pkt->hdr.net_id.uint64,
                         l_chain_pkt->hdr.chain_id.uint64, l_chain_pkt->hdr.cell_id.uint64,
@@ -838,7 +839,8 @@ void s_stream_ch_packet_in(dap_stream_ch_t* a_ch, void* a_arg)
         case DAP_STREAM_CH_CHAIN_PKT_TYPE_UPDATE_GLOBAL_DB_END: {
             if(l_chain_pkt_data_size == sizeof(dap_chain_ch_sync_request_t)) {
                 if (l_ch_chain->state != CHAIN_STATE_UPDATE_GLOBAL_DB_REMOTE ||
-                        memcmp(&l_ch_chain->request_hdr, &l_chain_pkt->hdr, sizeof(dap_chain_ch_pkt_t))) {
+                        memcmp(&l_ch_chain->request_hdr.net_id, &l_chain_pkt->hdr.net_id,
+                               sizeof(dap_chain_net_id_t) + sizeof(dap_chain_id_t) + sizeof(dap_chain_cell_id_t))) {
                     log_it(L_WARNING, "Can't process UPDATE_GLOBAL_DB_END request because its already busy with syncronization");
                     s_stream_ch_write_error_unsafe(a_ch, l_chain_pkt->hdr.net_id.uint64,
                             l_chain_pkt->hdr.chain_id.uint64, l_chain_pkt->hdr.cell_id.uint64,
@@ -1017,7 +1019,8 @@ void s_stream_ch_packet_in(dap_stream_ch_t* a_ch, void* a_arg)
         case DAP_STREAM_CH_CHAIN_PKT_TYPE_UPDATE_CHAINS_END: {
             if(l_chain_pkt_data_size == sizeof(dap_chain_ch_sync_request_t)) {
                 if (l_ch_chain->state != CHAIN_STATE_UPDATE_CHAINS_REMOTE ||
-                        memcmp(&l_ch_chain->request_hdr, &l_chain_pkt->hdr, sizeof(dap_chain_ch_pkt_t))) {
+                        memcmp(&l_ch_chain->request_hdr.net_id, &l_chain_pkt->hdr.net_id,
+                               sizeof(dap_chain_net_id_t) + sizeof(dap_chain_id_t) + sizeof(dap_chain_cell_id_t))) {
                     log_it(L_WARNING, "Can't process UPDATE_CHAINS_END request because its already busy with syncronization");
                     s_stream_ch_write_error_unsafe(a_ch, l_chain_pkt->hdr.net_id.uint64,
                             l_chain_pkt->hdr.chain_id.uint64, l_chain_pkt->hdr.cell_id.uint64,