If you encounter problems like these:
dhcpcd[13577]: eth0: broadcasting for a lease
dhcpcd[13577]: eth0: offered 192.168.1.64 from 192.168.1.1
dhcpcd[13577]: eth0: reject NAK via 192.168.1.1
Online you will find a lot of old threads suggesting things like commenting out the line require dhcp_server_identifier in the file dhcpcd.conf. Didn’t help in my case.
I was doing this on a udoo micro computer and I previously used a different operating system with it (Debian vs. Arch). By changing the micro-SD card the hostname changed as well. My FritzBox didn’t like this however. So I removed the hostname/IP entry on the router (“Fritz!Box 7490″) website. Now everything was back to normal.
I think the same could happen with a Raspberry Pi as I also swap memory cards (and thus hostnames) quite often with these.
