diff --git a/components/esp_eth/src/esp_eth_phy_lan8720.c b/components/esp_eth/src/esp_eth_phy_lan8720.c
index d0dc378a56..34dc87a71f 100644
--- a/components/esp_eth/src/esp_eth_phy_lan8720.c
+++ b/components/esp_eth/src/esp_eth_phy_lan8720.c
@@ -280,7 +280,8 @@ static esp_err_t lan8720_reset_hw(esp_eth_phy_t *phy)
         esp_rom_gpio_pad_select_gpio(lan8720->reset_gpio_num);
         gpio_set_direction(lan8720->reset_gpio_num, GPIO_MODE_OUTPUT);
         gpio_set_level(lan8720->reset_gpio_num, 0);
-        esp_rom_delay_us(100); // insert min input assert time
+        /* assert nRST signal on LAN8720 a little longer than the minimum specified in datasheet */
+        esp_rom_delay_us(150);
         gpio_set_level(lan8720->reset_gpio_num, 1);
     }
     return ESP_OK;