- Joined
- Nov 19, 2010
- Messages
- 243
- Motherboard
- Gigabyte EX58 UD3R
- CPU
- X5650
- Graphics
- Asus RX580 8GB
- Mac
So this worked up until 10.15.4 upgrade I think. I've got Catalina installed on this old legacy system. I can boot with Sys def of either MacPro 5,1 or imac 14,2 but neither of these allow me to connect to the internet. The machine is hard wired to ethernet and both system deffinitions used to have an active network card in system report. Now the system report in Catalina says that the computer has no card. It actually has two ethernet cards, the built in and the added PCI one I've always used Marvell Yukon Gigabit Adapter 88E8053 Singleport Copper SA. This seems kext related but I have tried with no success to find the right combination of kexts and settings to get ethernet back. It works fine booting into Mojave just not Catalina. And again it used to work in Catalina. I would really appreciate some help solving this.