I have ESP32 Wroover Kit V3 and ESP32-DevKitC.

I ran same iperf example(https://github.com/espressif/esp-idf/tree/master/examples/wifi/iperf) on these 2 boards (Both config and app is same).

The Wifi speed on TCP in client mode on ESP32-DevKitC and ESP32 Wroover kit V3 are 1.5 Mbps and 40Kbps ...

We are trying to evaluate ESP32 with TLK110 Phy interface, We followed the connections as per the Comments and Documents in Ethernet sample code.

Our connection:
// TXD0 = GPIO19
// TXD1 = GPIO22
// TX_EN = GPIO21
// RXD0 = GPIO25
// RXD1 = GPIO26
// CLK == GPIO0

We are seeing Phy ...