I am stumped. Mac telling me to eject disk that doesn't exist.

[davidlv]

You need to go to Network in System Preferences, select the Ethernet adapter in the left column and then click on the Advanced button. From there, go to the Hardware tab and change it from Automatically to Manually. Then for the Speed you must select 1 GB (1000baseT) or higher. Then, under the Duplex setting there will be options with and without energy-efficient-ethernet. Pick the one you want without energy-efficient-ethernet and you have disabled it. You would normally want to select Full-Duplex if you're using TCP/IP. Ethernet Flow Control is not needed for TCP/IP as it manages this within the protocol itself, so hardware flow control isn't necessary and can slow things down unnecessarily.

Thanks for the explanation! Networking is a blind-spot, never even studied the basics, as I suspect is true for most of us. Anyway, I changed to Full duplex only, and will keep an eye on the internet speed, which is already very fast here in Japan. Usually I get well over the normal upload and download speed.

 

[davidlv]

You need to go to Network in System Preferences, select the Ethernet adapter in the left column and then click on the Advanced button. From there, go to the Hardware tab and change it from Automatically to Manually. Then for the Speed you must select 1 GB (1000baseT) or higher. Then, under the Duplex setting there will be options with and without energy-efficient-ethernet. Pick the one you want without energy-efficient-ethernet and you have disabled it. You would normally want to select Full-Duplex if you're using TCP/IP. Ethernet Flow Control is not needed for TCP/IP as it manages this within the protocol itself, so hardware flow control isn't necessary and can slow things down unnecessarily.

Thanks so much for the expert advice. Can you answer 2 more questions?

In the TCP/IP pane - Configure IPv6 is now set to Link-local only. Is that OK?

In the Hardware pane - Should AVB/EAV Mode be checked or not?
Thanks in advance.

 

[BanditoB]

IPv6 Link-local only is fine. It just means that the network adaptor will only look on the local network while using IPv6 addresses. In other words, the network data from your Ethernet adapter won't be routable outside of your Local Area Network (LAN). For the vast majority of home networks, IPv6 (Internet Protocol Version 6) is not used for anything so this setting essentially does nothing.

AVB/EAV are essentially special settings that allow for time synchronization of multiple audio and video devices on the network. Unless you know that you need it enabled, because you are networking these highly-specialized devices, it should remain disabled.

 

[davidlv]

IPv6 Link-local only is fine. It just means that the network adaptor will only look on the local network while using IPv6 addresses. In other words, the network data from your Ethernet adapter won't be routable outside of your Local Area Network (LAN). For the vast majority of home networks, IPv6 (Internet Protocol Version 6) is not used for anything so this setting essentially does nothing.

AVB/EAV are essentially special settings that allow for time synchronization of multiple audio and video devices on the network. Unless you know that you need it enabled, because you are networking these highly-specialized devices, it should remain disabled.

Thanks so much!

 

[davidlv]

IPv6 Link-local only is fine. It just means that the network adaptor will only look on the local network while using IPv6 addresses. In other words, the network data from your Ethernet adapter won't be routable outside of your Local Area Network (LAN). For the vast majority of home networks, IPv6 (Internet Protocol Version 6) is not used for anything so this setting essentially does nothing.

AVB/EAV are essentially special settings that allow for time synchronization of multiple audio and video devices on the network. Unless you know that you need it enabled, because you are networking these highly-specialized devices, it should remain disabled.

I mentioned your advice to a friend, using a 2020 Mac Mini Intel, running Monterey, and he said "The AVB/EAV Mode was checked. I play my iTunes through my stereo system, connecting via wireless to an Apple music link-up. I also play my audio books (= music) from my old iPhone 8 (now used as an iPod), connecting via the same link-up. Does that mean I should keep it checked? (Apple TV also connects to the stereo system via wireless, although I don't use it. I do sometimes link my mac mini for screen-sharing with Apple TV so I can work with clients on the computer using the TV screen and wireless mouse/keyboard.)"
I couldn't answer him, so what do you think? Does he need to have that AVB/EAV option checked or not? I suspect not, but sorry for the simple question. Networking is certainly an area where many of us (even long-time Mac users like my friend) are clueless.

 

[BanditoB]

No, neither of you need to have AVB/EAV checked. As I mentioned, it is only for highly-specialized devices none of which you two have. That being said, I don't know if there's any kind of performance hit having it enabled. If there is one, it would likely be small and since your friend is having no issues, I wouldn't be very concerned about it.

 

[davidlv]

No, neither of you need to have AVB/EAV checked. As I mentioned, it is only for highly-specialized devices none of which you two have. That being said, I don't know if there's any kind of performance hit having it enabled. If there is one, it would likely be small and since your friend is having no issues, I wouldn't be very concerned about it.

Thanks so much for the expert advice and the time and effort!
Much appreciated!