I am using Http Server sample code and found that I takes around 40s to start network. Finally, I found that it takes so long to start network because auto negotiation failed.
Could you tell me why and how to fix this issue?
Try a FRDM-K66F binary for here as reference to check your HW: http://www.utasker.com/kinetis/FRDM-K66F.html
Auto-negotiation time probably depends on the PHY polling rate used since there is no PHY interrupt line connected on that board and so the network stack will only know when the connection is up when it (manually) checks its state.
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