Hi Phillippe There is a check you can do with High Sierra for ethernet firmware. This should at least indicate the scope of your problem: “just” the hardware or possible EFI corruption.
My late 2009 iMac lost its ethernet port a few years ago. Opinion from MacWorx and other experts was to replace the logic (mother) board. As the ethernet port was not essential for my use, I put up with the lack plus other occasional odd behaviour. I eventually installed High Sierra which included updated EFI boot software. This firmware update fixed all the odd problems I’d been having. Ethernet is not essential for my computer usage. This is an extract from the eclecticlight.co <http://eclecticlight.co/> website by Howard Oakley. The article title is “Which EFI firmware should your Mac be using?” However, if you’re that curious, High Sierra and Mojave offer another firmware checker, which examines BCM5701 ethernet devices. In Terminal, type /usr/libexec/firmwarecheckers/ethcheck/ethcheck --h to see its usage information. The command sudo /usr/libexec/firmwarecheckers/ethcheck/ethcheck --integrity-check performs a check on your ethernet firmware, provided that your Mac has a real ethernet port. You can find the current version of the ethernet firmware listed in the Ethernet Cards section of System Information. This is the full url of the article - - - https://eclecticlight.co/2018/10/31/which-efi-firmware-should-your-mac-be-using-version-3/ This may not remove the thorn from your foot, but it may help bring the pain into perspective. Cheers Alan > On 26 Nov 2018, at 8:15 pm, Daniel Kerr <[email protected]> wrote: > > Hi Philippe > > If no success with the SMC reset, then yes it could be a hardware problem > with the Ethernet port. > Realistically as it’s on the mother board you wouldn’t want to repair it I’m > afraid, as the board is very expensive. You better option would be a > Thunderbolt to Ethernet adapter if you still needed Ethernet, as it would be > way cheaper! > MacWorx Joondalup are still great for hardware checks/repairs. And they’d > have the adapter in stock should you decide to use that option. > > Hope all that helps. > Kind regards > Daniel > > Sent from my iPhone XS > > --- > Daniel Kerr > MacWizardry > > Phone: 0414 795 960 > Email: <daniel AT macwizardry.com.au> > Web: <http://www.macwizardry.com.au> > > > **For everything Apple** > > NOTE: Any information provided in this email may be my personal opinion and > as such should be taken accordingly, and may not be the views of MacWizardry. > Any information provided does not offer or warrant any form of warranty or > accept liability. It would be appreciated that if any information in this > email is to be disseminated, distributed or copied, that permission by the > author be requested. > >> On 26 Nov 2018, at 7:41 pm, Ronni Brown <[email protected]> wrote: >> >> Hi Philippe, >> >> Try an SMC reset > Reset the System Management Controller (SMC) on your Mac >> - Apple Support >> >> Regards, >> Ronni >> >> Ronni Brown’s iPad Pro 12.9-inch 256GB >> >> >> On 26 Nov 2018, at 6:25 pm, Philippe Chaperon <[email protected]> wrote: >> >>> Dear WAMUG’ers, >>> >>> The Ethernet port of my iMac 21.5”, Mid 2014 , 1.4GHz Intel Core i5 and 9GB >>> 1600 MHz DDR3 seems to have gone South. The iMac is running High Sierra >>> 10.13.6. >>> >>> I have checked Network Utility which indicates that the Ethernet is ‘Not >>> Connected’ and have done the usual checks of swapping cables, using a brand >>> new one, swapping the port on my modem/router, reset the NVRAM. All to no >>> avail. >>> >>> Does this mean the iMac needs to go to the hospital and see a specialist? >>> And which hospital is the recommended one? Can the Ethernet port be replace >>> or is this hard-wired to the mother board? >>> >>> Please note that the Wi-Fi works and I can keep working on the iMac, but >>> knowing something is not right is the proverbial thorn in my foot and I >>> need to have it fixed. >>> >>> Any advice you can give me will be gratefully accepted and tried. >>> >>> Many thanks & best regards to all, >>> >>> Philippe Chaperon >>> >> -- The WA Macintosh User Group Mailing List -- >> Archives - <http://www.wamug.org.au/mailinglist/archives.shtml> >> Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.shtml> >> Settings & Unsubscribe - >> <http://lists.wamug.org.au/listinfo/wamug.org.au-wamug> > > -- The WA Macintosh User Group Mailing List -- > Archives - <http://www.wamug.org.au/mailinglist/archives.shtml> > Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.shtml> > Settings & Unsubscribe - > <http://lists.wamug.org.au/listinfo/wamug.org.au-wamug>
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