I have a 2008 mac pro with three OS drives. 2 x High Sierra and 1 x Yosemite. The Yosemite installation refuses to connect to the internet. It just stopped working. I have tried all the fixes and diagnostics to no avail. It is connected to my network. All other devices have access. It works when booting into either of the High Sierra installations. Any ideas out there?
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MP 1,1-5,1 Internet Connection Mystery
- Thread starter Wingston
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Have you tried removing all network interfaces and just adding the active one? Is your service order set correctly?