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Solved
CBR 750 Ethernet Connection Issues
We just got the new Orbi CBR 750 Cable Modem Router. WiFi is spot on, strong, fast coverage... BUT... I like my desktop 2019 27" iMac running Catalina 10.15.7 (if that matters) to be wire...
Problem solved? I went into to network preferences on the Mac and added the correct DNS address, hit apply, restarted, & BAM! Working! Odd that it would be that way to begin with, but fingers crossed.
When you connected the Apples devices, did you disable the wifi radio on the devices?
When you connected the ethernet cable to the devices, did you check to see if the adapter got a IP address and DNS addresses from the CBR?
Ensure no static IP address configurations are set on the devices.
Be sure the ethernet cable is of good quality. CAT6 is recommended.
I tried both disabling WiFi, and not disabling Wifi...neither way worked.
Please see my follow up post. Ethernet is working from the satellite, not from the main unit. The DNS addresses are different on the main units ethernet and wifi configurations.
Problem solved? I went into to network preferences on the Mac and added the correct DNS address, hit apply, restarted, & BAM! Working! Odd that it would be that way to begin with, but fingers crossed.