Long PXE booting time with Wyse Z90D7

Hello,

I am trying to understand why my Wyse Z90D7 needs rather exactly 60 seconds to request an IP over DHCP while booting (PXE). It's literaturely waiting for that time in the shown state (It's not a screenshot of my device...).

After that time, everything goes as expected - I get an IP from my DHCP server and TFTP download is also fine.

I sniffed the traffic with wireshark and see that the first IP request from the Wyse is coming after 60 seconds being in the shown state.

BIOS version is 3.0E.

Can please someone give me a hint how I can reduce that waiting time? Thank you!

Best Regards,

Thomas