No internet connectivity after installing Mojave

I have just upgraded to Mojave through the app store from Seirra. It took for ever at the log in screen and then finally the WIFI is greyed out with a X and when you open a browser there is not connectivity. Late 2017 iMac


I am not running little snitch, it takes for ever to restart too.


Any help would be very much appreciated.

iMac, iOS 12

Posted on Sep 24, 2018 2:31 PM

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Posted on Sep 29, 2018 4:59 PM

I solved the problem by doing a clean install of Mojave, and once the installation was finished I used Migration Assistant to migrate my applications, my settings, and my user folder—but NOT the “other files and folders”. Once I restarted, the problem was fixed. This solved both the internet problem and the slow login.

81 replies

Oct 16, 2018 8:13 AM in response to hubilado

But… I don't have VPN on.


One thing I wondered is that I have a partition on the Mojave disk that contains High Sierra. If Mojave installer needs to reformat the drive I'll back-up and remove the High Sierra partition.


I only use it for testing Systems and I've sort of dropped out of testing aftyer having a lot of building work done here over the last 6 months.

Nov 7, 2018 9:13 AM in response to dino_russ

I fully understand your reluctance. One thing to note is that if she has a Time Machine back-up, migrating her users and applications, ect, will take all the passwords and other things with it. She should be able to restart and not notce anything has changed. I've just done another iMac here by the same process and so far everything is working normally, including all the twiddly, individualisations that were on it.


I think 10.14.1 solved the networking glitches but it's worth doing a search on the Web as I removed a few files from my Mac after my first attempt to upgrade. Plus there are workarounds to get apps such as Photoshop CS5 up and running.

Nov 7, 2018 9:32 AM in response to markfromworthing

markfromworthing wrote:


I fully understand your reluctance. One thing to note is that if she has a Time Machine back-up, migrating her users and applications, ect, will take all the passwords and other things with it. She should be able to restart and not notce anything has changed. I've just done another iMac here by the same process and so far everything is working normally, including all the twiddly, individualisations that were on it.


I think 10.14.1 solved the networking glitches but it's worth doing a search on the Web as I removed a few files from my Mac after my first attempt to upgrade. Plus there are workarounds to get apps such as Photoshop CS5 up and running.

I have not always had good luck with the migration app moving all settings and passwords for accounts, and setups in Safari like what she has. So I am wary and for a machine that has a few specific things she needs not sure I want to spend the time in doing that LOL

Nov 25, 2018 3:36 AM in response to dReAdLoK

Thank you for describing the symptoms correctly. I can't believe everyone's solution is to reinstall the OS... HA! I was a Software QA Engineer and I cannot believe Apple let this release out. That's a Severity 2 defect however as it doesn't result in data loss so I am guessing they knew about it and released it anyway. I don't think the previous release was much better to be honest. WIndows 10 is much more stable, it took Microsoft years to get there but I think they have the better OS now. I hope that Apple will invest enough in engineering to fix this issue.

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No internet connectivity after installing Mojave

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