diff --git a/ports/espressif/esp-idf-config/sdkconfig.defaults b/ports/espressif/esp-idf-config/sdkconfig.defaults
index 74c9019d99..03924c89f8 100644
--- a/ports/espressif/esp-idf-config/sdkconfig.defaults
+++ b/ports/espressif/esp-idf-config/sdkconfig.defaults
@@ -37,9 +37,11 @@ CONFIG_ESP_MAIN_TASK_STACK_SIZE=16384
 
 #
 # Wi-Fi
-#
-CONFIG_ESP_WIFI_DYNAMIC_RX_BUFFER_NUM=8
-CONFIG_ESP_WIFI_STATIC_TX_BUFFER=y
+
+# Broken for C6
+# CONFIG_ESP_WIFI_DYNAMIC_RX_BUFFER_NUM=8
+# CONFIG_ESP_WIFI_STATIC_TX_BUFFER=y
+
 # CONFIG_ESP_WIFI_NVS_ENABLED is not set
 # end of Wi-Fi