I find out, that the initialization function "init_TcpNet" of the RL-TCPnet stack takes about 2 seconds in my case. I use an STM32F437 running at 180MHz with a DP83848 PHY with the delivered driver from Keil. Why does this take so long? In my case, the system must reinitialize in a few milliseconds (warm-start). Is there any option to accelerate this?