Hi,
Thanks for posting in Q&A platform.
Based on my knowledge, the Unique ID in DHCP server means MAC address of the DHCP client. DHCP server assign available IP address based on MAC address of DHCP client. According to the provided screenshot, the DHCP client with same hostname but has different MAC address.
Please help to confirm if these DHCP clients are different mobile devices or the same mobile device.
If they are the same mobile device and if it has several interfaces, every interface will has its own MAC address, DHCP server assign IP addresses according to the different MAC address, the behavior of DHCP server is normal.
If they are different mobile devices, the behavior of DHCP server is normal as well. Although the hostname of these devices are same, the MAC addresses are different, as above working flow, the behavior of DHCP server is normal.
For more details regarding how DHCP works, please refer to the following article:
Best Regards,
Sunny
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