diff --git a/platformio.ini b/platformio.ini
index 6e88b7358..b9979c43a 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -40,13 +40,12 @@ build_flags =
   -D CONFIG_ASYNC_TCP_PRIORITY=10 ; default
   -D CONFIG_ASYNC_TCP_QUEUE_SIZE=64 ; default
   -D CONFIG_ASYNC_TCP_RUNNING_CORE=1 ; force async_tcp task to be on same core as Arduino app (default is any core)
-  -D CONFIG_ASYNC_TCP_STACK_SIZE=6144 ; stack usage measured: ESP32: ~2.3K, ESP32S3: ~3.5k - (default is 16K)
+  -D CONFIG_ASYNC_TCP_STACK_SIZE=8192 ; stack usage measured: ESP32: ~2.3K, ESP32S3: ~3.5k - (was 6KB/6144, default is 16KB/8192*2)
   ; ESPAsyncWebServer
   ; -D WS_MAX_QUEUED_MESSAGES=0 ; not used, default 8
   ; -D SSE_MAX_QUEUED_MESSAGES=1 ; for log messages, default 32
-  -D CORE_DEBUG_LEVEL=0
   -D EMSESP_SCHEDULER_RUNNING_CORE=1
-  -D EMSESP_SCHEDULER_STACKSIZE=8192
+  -D EMSESP_SCHEDULER_STACKSIZE=8192 ; 8KB
   -D EMSESP_MQTT_RUNNING_CORE=1 ; default 1
   ; -D EMSESP_MQTT_STACKSIZE=5120 ; default
   -D EMSESP_UART_RUNNING_CORE=1 ; default any core
@@ -61,7 +60,8 @@ framework = arduino
 board_build.partitions = partitions/esp32_partition_16M.csv
 board_upload.flash_size = 16MB
 board_build.app_partition_name = app0
-platform = espressif32@6.12.0 ; Arduino Core v2.0.17 / IDF v4.4.7
+; platform = espressif32@6.12.0 ; Arduino Core v2.0.17 / IDF v4.4.7
+platform = espressif32@6.12.0 ; Arduino Core 2.0.17 / IDF 4.4.7
 
 ; 32MB Flash variants
 [espressif32_base_32M]
@@ -108,7 +108,7 @@ build_type = release
 board_build.filesystem = littlefs
 lib_deps =
   bblanchon/ArduinoJson @ 7.4.2
-  ESP32Async/AsyncTCP @ 3.4.8
+  ESP32Async/AsyncTCP @ 3.4.9
   ESP32Async/ESPAsyncWebServer @ 3.8.1
   https://github.com/emsesp/EMS-ESP-Modules.git @ 1.0.8