Personally, I would just run the sniffer which will give all answers:
/tool sniffer start interface=ether1-uplink port=68
and after some time (look at logs and wait until you lose and reacquire your IP few times)
/tool sniffer save file-name=dhcp.pcap
/tool sniffer stop
In the file, there will be DHCP packets captured. You can download it to your computer and use tools like Wireshark to read it.
Packets should go same way as described here: https://en.wikipedia.org/wiki/Dynamic_H ... #Operation
If they aren't in the same order, some packet is missing or some is repeated many times, it points to the issue. Skilled person should instantly know whats going on.
Usual reason is, that either client or server miss some packet and does not reply.
If you are unsure what to do with the recorded file, you may show it to someone more experienced or upload it here as attachment.
If you worry about not publishing your IP, well, you already did, because anyone with piece of brain can figure it out from your screenshot.