Mac os lion authentication server could not be contacted

But then i click on the bind button I get an error message saying that the authentication server could not be contacted.

"Could not connect to the server" Mac App Store Error Fix

Mac mini, OS X Server. Posted on Mar 4, PM.


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Page content loaded. DNS and time are your two most critical pieces. If your AD domain is something.

And finally, if your date and time are off by as little as 1 minute, you may fail to join the domain. Sounds like you are failing before this as you do not mention getting the authentication dialog. Mar 4, PM. I actually can ping my domain name. Strontium90, everything seems to be fine for my DNS as far as I know.

Mar 5, AM. I can ping the domain, i can do a lookup by the network utility, but still cant bind to the domain. AD clients are expected to examine the directory and bind initially to the DC that is closest. I have found that Macs don't always use the closest DC. The initial bind creates a machine account on a single DC.

This account is then replicated across all the DCs. I have expereinced inconsistent flaky behavior by Macs while replication was occuring. One remedy for this phenomena is to manually pre-define the Mac Computer account in Windows AD, wait for replication to complete and then attempt to bind the Mac. It doesn't work that way. Each Mac client must be individually bound to AD. My problem was that we have 2 DNS servers in our environnement since we have an hybrid environnement Novell and Microsoft.


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  • So, i changed the setting on my mac server to use the DNS server from my microsoft DC, and now i'm able to bind to it! Mar 5, PM. I just want to chime in here as another option for some that may also be experiencing this. Perhaps the Network settings aren't correct. Then you may have a cable that is not fully inserted into the Ethernet adapter Jun 21, PM. How do i move that file to my Windows pc? In the past MacOS supported Fat32 which acted as a conduit between the different operating systems.

    I see that Fat32 is not fully supported with High Sierra. Any advice here? They can easily be transferred from one system to another by using cloud storage Dropbox, iCloud, OneDrive, Google Drive and others. Also, a file may be emailed, then downloaded, if it meets size limits. Why does Apple pull this crap? I lost a week of data, Mail, everything, and had to pay a fair amount of money to a consultant to get my Mac Pro back up and running.

    I guess Apple forgot to put the skull and crossbones on the High Sierra icon. It cannot be APFS. I did run Disk Utility before the Recovery installation, that reported no problems. Upgrading my Macbook Pro late to High Sierra was pretty painless. Zero problems and I now have a Time Machine drive after throwing the old drive in an enclosure.

    Binding MAC to AD - Error - DNS - Spiceworks

    It eventually was installed after a firmware update but then thing started down hill. Had lots of trouble authenticating with iMessage. Then screen started flickering. I wont be touching High Sierra for a while. Oh well. Maybe next year. That is horrible!

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    However it brought up a good point for Mac Pro users. If you have not done this already…. Do a simple search for Firmware Restoration. If you have a tray-loading optical drive, gently push the tray closed after inserting the CD. Conversion went fine then encryption in the background started.

    The recovery server could not be contacted high sierra install

    Disk was working fine. At some point I switched off the Mac with presumably encryption still going on.. I never had problems with encryption with HFS and I am sure that sometimes I even interrupted abruptly connection with disk encryption can take days so is normal to switch off and also power failure o cable disconnection might happen.. I am asked for the password although it should be in the keychain , it is accepted, but then nothing happens. Disk is invisible, no icon , and if I go in Disk Utility it is just stuck on turning wheel.

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    Click the [Details] links for more information about that line. Yes, mine did.

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    Expect it to take an hour or more though. Good luck! Use Disk Utility Restore to create a clone to external hard drive. Install High Sierra on to that HD. A couple of comments. I just upgraded my Mac Pro to High Sierra. Firstly, for those interested it required a firmware upgrade. Thirdly, contrary to what this article says, the Time Machine drive does not appear to work as APFS I converted mine, so now have no access to my backups … grrrr.

    I will try reformatting as a clean APFS drive and using that — will report back later if it works. DO NOT upgrade your drive manually or you will lose your backups and it will force you to reformat back anyhow. I am also having this problem on my Mac Pro. I think the problem is not with the filesystem but with something else.

    Terrible news! You could try resetting the firmware on your Mac. This would not allow use of High Sierra but should put your computer back on track. I already posted some extra instructions on this thread.