diff --git a/node1.c b/node1.c
index 5b1f0f7..a02010e 100644
--- a/node1.c
+++ b/node1.c
@@ -145,13 +145,13 @@ static bool cb_30(__unused struct repeating_timer *t) {
                current_bem280_reading.humidity);
       printf("Sending data to backend server...\n");
       printf("MSG: %s", msg);
-      // bool success = tcp_client_send_message(&tcp_config, msg);
-      // if (success) {
-      //     printf("✓ Data sent successfully\n");
-      //     comms_led_blink();
-      // } else {
-      //     printf("✗ Failed to send data\n");
-      // }
+      bool success = tcp_client_send_message(&tcp_config, msg);
+      if (success) {
+          printf("✓ Data sent successfully\n");
+          comms_led_blink();
+      } else {
+          printf("✗ Failed to send data\n");
+      }
   } else {
       printf("WiFi not connected, skipping send\n");
   }
diff --git a/tcp_client.c b/tcp_client.c
index 53dd7a1..dcb629c 100644
--- a/tcp_client.c
+++ b/tcp_client.c
@@ -79,10 +79,10 @@ static err_t tcp_client_connected(void *arg, struct tcp_pcb *tpcb, err_t err) {
         DEBUG_printf("tcp_client: connect failed %d\n", err);
         return tcp_client_result(state, err);
     }
-    
+
     state->connected = true;
     DEBUG_printf("tcp_client: connected, sending message\n");
-    
+
     // Send the message
     cyw43_arch_lwip_begin();
     err_t write_err = tcp_write(tpcb, state->message, state->message_len, TCP_WRITE_FLAG_COPY);
@@ -91,16 +91,16 @@ static err_t tcp_client_connected(void *arg, struct tcp_pcb *tpcb, err_t err) {
         cyw43_arch_lwip_end();
         return tcp_client_result(state, -1);
     }
-    
+
     // Flush the data
     err_t output_err = tcp_output(tpcb);
     cyw43_arch_lwip_end();
-    
+
     if (output_err != ERR_OK) {
         DEBUG_printf("tcp_client: failed to output data %d\n", output_err);
         return tcp_client_result(state, -1);
     }
-    
+
     return ERR_OK;
 }
 
@@ -121,27 +121,27 @@ static void tcp_client_err(void *arg, err_t err) {
 
 static err_t tcp_client_recv(void *arg, struct tcp_pcb *tpcb, struct pbuf *p, err_t err) {
     tcp_client_state_t *state = (tcp_client_state_t*)arg;
-    
+
     if (!p) {
         DEBUG_printf("tcp_client: connection closed by server\n");
         return tcp_client_result(state, 0);
     }
-    
+
     cyw43_arch_lwip_check();
-    
+
     if (p->tot_len > 0) {
         DEBUG_printf("tcp_client: received %d bytes (ignoring)\n", p->tot_len);
         tcp_recved(tpcb, p->tot_len);
     }
     pbuf_free(p);
-    
+
     return ERR_OK;
 }
 
 static bool tcp_client_open(tcp_client_state_t *state) {
-    DEBUG_printf("tcp_client: connecting to %s port %u\n", 
+    DEBUG_printf("tcp_client: connecting to %s port %u\n",
                  ip4addr_ntoa(&state->remote_addr), state->remote_port);
-    
+
     state->tcp_pcb = tcp_new_ip_type(IP_GET_TYPE(&state->remote_addr));
     if (!state->tcp_pcb) {
         DEBUG_printf("tcp_client: failed to create pcb\n");
@@ -158,7 +158,7 @@ static bool tcp_client_open(tcp_client_state_t *state) {
     state->timeout_time = make_timeout_time_ms(state->timeout_ms);
 
     cyw43_arch_lwip_begin();
-    err_t err = tcp_connect(state->tcp_pcb, &state->remote_addr, 
+    err_t err = tcp_connect(state->tcp_pcb, &state->remote_addr,
                            state->remote_port, tcp_client_connected);
     cyw43_arch_lwip_end();
 
@@ -170,7 +170,7 @@ static bool tcp_client_open(tcp_client_state_t *state) {
     return true;
 }
 
-bool tcp_client_init(tcp_client_config *config, const char *server_ip, 
+bool tcp_client_init(tcp_client_config *config, const char *server_ip,
                      uint16_t server_port, uint32_t timeout_ms) {
     if (!config || !server_ip) {
         return false;
@@ -214,7 +214,7 @@ bool tcp_client_send_message(tcp_client_config *config, const char *message) {
     state->success = false;
     state->connected = false;
 
-    DEBUG_printf("tcp_client: sending message (%d bytes): %s\n", 
+    DEBUG_printf("tcp_client: sending message (%d bytes): %s\n",
                  state->message_len, message);
 
     if (!tcp_client_open(state)) {
@@ -232,18 +232,13 @@ bool tcp_client_send_message(tcp_client_config *config, const char *message) {
             state->success = false;
             break;
         }
-
-#if PICO_CYW43_ARCH_POLL
         cyw43_arch_poll();
         cyw43_arch_wait_for_work_until(make_timeout_time_ms(100));
-#else
-        sleep_ms(100);
-#endif
     }
 
     bool success = state->success;
     free(state);
-    
+
     return success;
 }
 
@@ -252,4 +247,4 @@ void tcp_client_cleanup(tcp_client_config *config) {
         config->initialized = false;
         config->internal_state = NULL;
     }
-}
\ No newline at end of file
+}