DHCP Instruction macOS
Open the System preferences
Select your network adapter: Thunderbold Ethernet or Thunderbold Bridge
Click on More Options.
Under the tab TCP/IP at Configure IPv4 select DHCP.
Switch to the DNS tab.
If there are entries in the list DNS server entries in black font color, mark these entries so that they are highlighted in blue.
Then click on the minus (-) at the bottom.
If there are no entries or entries with grey font colour starting with 141.44., you do not need to do anything.
Confirm the windows with OK or Apply.