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Forum Discussion
lxu2011ct
Aug 21, 2025Aspirant
Wired connected Mac Mini with RBR 750 has no internet connection
Hi, My Mac Mini is connected via Ethernet to the RBR750 router and serves as a document server for our home network. All other devices can access it, whether they're connected wirelessly or by ca...
- Aug 22, 2025
Hi, I sent my question to Copilot.microsoft.com and got a list of Key Possibilities to investigate. The first one "IP Reservation vs. Static IP Conflict" fixed my problem. It turned out that the Mac Mini was accidently set to use Manually instead of DHCP, which messed up the DNS. After the correction, the Mac has the internet connection with ethernet cable. Thank you all for your help!
L
CrimpOn
Aug 21, 2025Guru - Experienced User
lxu2011ct wrote:the Mac Mini uses a reserved IP address when connected via Ethernet,
Is this "reserved" IP address (a) set on the Mac Mini itself (i.e. a "static IP") or (b) is it configured in the LAN setup table on the router?
lxu2011ct
Aug 22, 2025Aspirant
The reserved IP is configured in the Lan setup table of the router RBR750. I assigned up to 192.168.1.20 for the reserved IP, and DHCP starts from 21. Thanks!
L