Problems with Ethernet Catalina 10.15.6
MacMini 2018 (Catalina 10.15.6)
I have been having problems recently, my ethernet stopped working.
First it only stated self assigned IP, after I rebooted the router, changed the ethernet cable, restarted the mac and tried resetting all network settings (preferences, etc.) it seemed to work again for a couple of days.
Now it does connect to the router (IP assigned and everything) but no internet. I changed to another router, same thing. Cable connection and IP good, but no internet.
If I change under Ethernet Settings>Hardware, to Manually and Speed 10baseT/UTP everything comes back to normal (internet working fine), but soon as I change the speed to 100baseTX or Automatic Configuration, internet drops even when ethernet interface status is green (cable connection OK, IP assigned OK), simply no internet. It cannot be the router, because I connected another Mac through ethernet and working just fine at full speed.
Anyone with same issue?
Mac mini, macOS 10.15