End of 2012 the Ethernet Mini Mac does not connect

Everything worked very well upward until a week ago.  I did all these recent software updates to cause problems.

I'm running OS X 10.11.3.  I use wired ethernet.  My ethernet does not work.  Preferences network indicates that the cable is disconnected.  It is not the case.  I tried to use another cable and same results.  I have a managed switch and it still says that when the Mini is on that the port is turned on and has 1000 full duplex connection.  When I power down the port turns off indicating it is nothing plugged in, when I turn on it powered back upward.  Therefore, it is not as if the ethernet port has failed.

I tried to renew the DHCP lease in network, deactivation and reactivation of the ethernet service preferences and still no luck.  Keeps coming up as ethernet is not connected.  I opened terminal and ran ifconfig and receive nothing.  I am unable to ping to any external site.  I am also unable to connect to my modem.

Wireless works fine.  I have a second, identical Mac Mini connected to the same hardware via ethernet, which works very well, so it doesn't seem to be any hardware related issues.  I use all the gear from ubiquiti networks, 24-port POE switch and usg 4 router pro, all new age of 2 months.  This must be a Mac issue and has nothing to do with my equipment.  2014 mac Book Pro works fine as well as 2 iPad Pros and 2 iPhones though wireless connections for them.

Any help is greatly appreciated.

It happened to other institutions.

Take a look at > If the Ethernet on your Mac stopped working recently - Apple supports

Tags: Mac

Similar Questions

  • Airport utility: green points on the AirPort Extreme & Internet; Mini Mac does not connect to the internet.

    Airport utility shows green points on the AirPort Extreme and the Internet, but my my Mac mini does not connect to the internet. IPhones and 2 portable Windows connect very well, and see all the devices on the home network. The problem occurred after that PSI has swapped an ancient for a Comtrend CT5072T DSL modem. I tried to stop and things start back up as if the installation of the internet for the first time. No joy.

    The airport connects using DHCP in Bridge Mode

    The router address is 192.168.80.1

    Address IPv4 is 192.168.80.2

    DNS server is the same as the router, but grayed out

    Mac Mini IPv4 Address is 192.168.80.3

    IPv6 automatically configures

    Also updated the firmware of the airport; no change.

    ISP guy was friendly but puzzled. He started at the top floor level Tech, so I do not know when I hear back.

    Any ideas to fix?

    Thank you.

    Post edited by: en maschera

    but my my Mac mini does not connect to the internet.

    The problem occurred after that PSI has swapped an ancient for a Comtrend CT5072T DSL modem.

    Hello

    Network preferences may be damaged.

    Open the Finder. In the Finder menu bar, click go > go to folder

    Type or copy paste the following text:

    / Library/Preferences/SystemConfiguration

    Click OK, and then move all files in the SystemConfiguration folder to the trash.

    Restart your Mac. See if that makes a difference.

    Your Mac will generate a new SystemConfiguration folder for you.

    Then open AirPort Utility located in HD > Applications > Utilitiies

    Make sure that both Internet and Extreme are green.

  • Mini Mac does not connect to restore the iPad 2

    I work in a public library, and we have several iPad 2s who lend us out for our guests to use. Between each user, restore us the iPad to factory default with a mac mini, then reinstall our applications from the iTunes backup. Since we have upgraded to iOS 9.2 a month ago, we had trouble getting the restore process of working part. When we try, we get this error message: "there was a problem downloading the software for the iPad. The requested resource is not found. »

    The mini connects to iTunes and can surf the web without any problem, we do not have any anti-virus installed on it, and we tried to connect via our LAN and WiFi. We have the latest version of iTunes and the latest iOS on the mini. We rebooted the mini many times. I checked the file hosts, in accordance with the instructions from apple, and apparently is not the issue. I am able to restore the iPad on a Windows PC and then move them to the mini to apply the settings of our saved backup, so I think the problem is with the mini itself, although it now occupies about 3 times more time to reinstall the applications as before.

    We've been ready ipads in recent years without any major problems and have made no changes to the default settings of the mini otherwise to update the iOS. Restore the iPad is the only thing we use the mini for. I would appreciate any advice.

    What OSX version and what version of iTunes?

    You say Mac mini Mac OS X (10.7.5)

    The last OSX is 10.11.2 and iOS 9.2 requires at least 10.8.5 to get the required iTunes version

  • I installed a new router (Netgear N300) wireless and my laptop is the only computer that does not connect to the internet.

    Connected to the new router, but locally only.

    Currently, I installed a new router (Netgear N300) wireless and my laptop is the only computer that does not connect to the internet. The small icon to the left of my screen says only: ACCESS: LOCAL ONLY.
    BASICALLY,.

    I have Windows Vista Home Premium, notebook Compaq (Presario CQ60 to be exact)

    I can connect if I use a cable, but its disadvantages.

    I can connect wirelessly with my PC and Ipad. and Internet access.

    I TRIED:
    Various patches microsoft such as resetting TCP, safe mode with network, reset the router. »

    Thank you in advance and we hope you can answer this soon!

    I use an Atheros AR5007 802. 11 b / g WiFi Adapter(Compaq laptop) for the moment so this is useful. Thanks again!
    Someone suggested that I update my wireless driver. I am open to this idea, if anyone can find a safe and legal site with the download.

    Hi Bryyaan11,

    You can check out the link to HP support and try to download the drivers for your wireless card updated:

    Support HP & drivers

    For more information, you can also consult the following article:

    Updated a hardware driver that is not working properly

    You can also check the following items and try the steps:

    Windows wireless and wired network connection problems

    Solve problems, find wireless networks

    Hope this information is useful.

  • My HP shows it is connected to the new router, but does not connect to the internet. How should I do?

    I have a HP G60 Notebook PC with Windows Vista Home Premium, it is about 4 years old. I recently got a new Cisco Linksys E1500 wireless router, which is connected to my home computer. My laptop shows that it is connected to the home network, but it does not connect to the internet. Other laptops in the House are able to connect to the network and to the internet. Mine seems to be the only one not working do not. Why it is not working? What should I do about it?

    I ran the network diagnostics. It is said "a problem with you network router or modem broadband could prevent an internet connection." I have disconnected these two and tried again. It did not work! I have also connected my laptop directly on the modem and it does not always connect to the internet. I tried to reset the network card. My IP settings are set to automatic.

    My internet connection was not a problem before last week (when I got a new router). What is the problem with my computer? Help, please!

    Hello:

    If you have an Atheros wireless adapter in your PC and you have not updated the driver, I recommend that you install it.

    http://h20000.www2.HP.com/bizsupport/TechSupport/SoftwareDescription.jsp?lang=en&cc=us&prodTypeId=321957&prodSeriesId=3688868&swItem=ob-99392-1&mode=3

    Wireless adapters Atheros with former pilots, dislikes the new Linksys routers.

    If you have an Atheros wireless card, and your wireless driver is more than 2 years, I am very confident that this will solve your connection problem.

    Paul

  • How can I correct a problem accessing my firewall settings because the Group Policy client does not connect to windows?

    I have tried everything recently adjust the settings of the firewall from my window and a box appears saying that after an unidentified error, I can't access my firewall. After some research, I discovered that it was because my client group policy server does not connect and a small box appears saying that whenever I connect to my laptop. It is not effect my use of the internet at all, so I've never bothered to see what that meant until now I need to access my firewall. I tried to adjust the settings in group policy, but everything is gray and I can't change anything. I use an admin account so I don't know why I can't set the parameters. I'm completely stuck and I don't know that much about computers. Is there anything else I can try? I also tried a system restore, but it lasts for a long time and I can return only 5 days. Thank you

    Hi Sheldon,

    Are you connected or connected to a work network or domain? If so, this could be a policy governed by your network administrator, and you will not be able to change it.
    You might try to tell scientists on TechNet on your question to see if they have a better answer for you:
  • My mac does not connect to the wifi unless I turn on the iphone

    My home wifi works great though I have my wifi enabled on my iPhone. But if I have the wifi turned on on my phone, free wifi does not work half the time, unless I wake up my iPhone. I do not use a personal hotspot, or any other type of phone wifi-centric. Just a normal modem and apple airport extreme router.

    My mac is a model of iMac end 2015 running El Capitan (later). Phone is running last sof

    Any ideas how to solve this problem?

    What exactly do you mean by "does not work? What is going on?

  • Mac does not connect to the wifi and keeps crashing

    My macbook pro (end 2013) will not connect to my wifi although each device only. Now he has slow veey hone and continues on crashing, doing simple things like a PDF of scrolling. It all started a week or two after the upgrade to OSX El Capitan

    -Try to reset memory NVRAM/PRAM and SMC

    MacIntel: Reset of the controller (SMC) system management

    Subject of memory NVRAM and PRAM

    -Try to start safe mode

    OS x: what is Safe Boot, Safe Mode?

    -Start to recovery and repair the startup disk

    OS X: on OS X Recovery - Apple Support

    -If it is repairable reinstall the OSX

    How to reinstall OS X on your Mac - Apple Support

    -If you do not have a backup using disk utility to restore the internal drive to an external drive, so that you can try to recover the data.

    Format the boot disk and then do a fresh install of Mac OS x

  • Volume F4 - F5 key on the keyboard for mac does not work on the microsoft side

    Volume F4 - F5 on the keyboard for mac key does not work... on the side of microsoft may not decrease or increase volume

    Hello

    ·         What do you mean by Microsoft Side?

    ·         Have you tried to update the latest audio drivers for the computer?

    ·         Were there any changes made on the computer before the show?

    Also I suggest you to contact the Apple support:

    http://www.Apple.com/support/Mac/

    See also: http://windows.microsoft.com/en-US/windows/help/no-sound-in-windows

  • The e-mail application does not connect to the Dreamhost servers. Perhaps because of how they configure their SSL certificate for their subdomains.

    http://wiki.DreamHost.com/Certificate_Domain_Mismatch_Error

    Certificate SSL of Dreamhost for their mail servers only at one level of subdomain while many of their clusters of e-mail exist on a second level subdomain. In my view, this translates into an error message 'bad security' of the e-mail application.

    I contacted DreamHost and they say they are unable to solve this problem, or that they will allow me to install an SSL certificate on my virtual domain pointing to my cluster e-mail (even if I had to buy a).

    I understand, it is possible to manually add certificates via adb in a way similar to this: http://www.pending.io/add-cacert-root-certificate-to-firefox-os/

    However what I read this: 1. does not work on the ZTE Open 2. Can only fix only navigation not the web mail client.

    Is there any option that is available to me short of switching hosts?

    Fabian,

    Are you familiar with Firefox OS? The reason why I say this is because the e-mail client cannot create an excaption certificate. In fact, it's design. It's design: https://wiki.mozilla.org/Gaia/Email/Features#Security

    This request for support to Mozilla was placed specifically for the product Firefox OS, for which there is only a single mail client.

    That said many people in the Mozilla Bugzilla, have been able to show me how to find another alias for those servers that actually works and in fact corresponds to SSL certificates. Although Dreamhost support could not provide me with any such information, and such information is not actually in the DreamHost wiki.

    I have a repeated insistence of Dreamhost possibility I should just live with the exceptions of SSL certificate, when there is real existing valid server names to match the certificates in question, silly.

    The fact that you post this solution for one product, so that it is not yet applicable beyond useless. It serves to muddy waters.

  • Impossible to interrogate the alarms & events, alarms does not connect

    Hi all

    I recently ran a question with the DSC alarm event & logging. I have a number of all shared variables libraries set up to record data and alarms at the Citadel. I double checked that the library itself is configured for data recording and alarms, as well as all the variables. Using the DSM, I can see all alarms active in the system across all libraries and can receive all the alarm by program change events.

    For some reason, alarms to one of the libraries are logging, and attempt to query the historical events & alarms via MAX raise an error at about 14 of 15 times (with no code error or indication of why it fails). I have also tried to check the database of the Citadel, with it fails with an error unspecified (presumably during archiving on the side of things alarms, archive data seems to work).

    Can anyone offer an overview on how to solve the problem, preferably without data loss? In addition, how can I avoid this problem in the future?

    Thanks for the suggestion. I tried the llb related, but it could not remove existing data. That said, I managed to resolve the issue.

    Removal of the database of alarms (not only the alarms), did the trick. My approach was:

    1. stop all libraries through DSM

    2. create the new base of Citadel by MAX

    3. use DSC Archive Traces VI to check in the footsteps of the database active for the newly created database

    4. remove the active database

    5 detach the new database

    6. move the new database on disk for the location of the old database

    7. set the new database with the same name as the old database

    8. start all libraries

    At this point all the alarms started logging in correctly and I can query the alarms without problem. The system is on a UPS now, so I hope that any future power failure does not affect the things.

  • HP photosmart 7510-e & mac does not connect to print;

    Recently successfully installed HP photosmart 7510-e all in one printer on wireless home safe and functional very well. Today press & won't print. Printed from the other laptop, but not mine. performed tests & said my Macbook pro says unknown device wireless. Do I need to uninstall and reinstall or another problem? Thank you.

    Thanks for the quick reply PrintDoc.

    I tried what you suggested, nothing works.  However, I noticed when scrolling down to the network default reset is there a way to manually assign an IP address.

    It took a lot of play, but ultimately, what worked was.

    1. Reset default network settings
    2. Manually set the IP address and the address of the DHCP server (DHCP address was wrong)
    3. Reserve the IP address of the router (so it's not assign this address to another device)
    4. Run the Wireless Setup Wizard

    I'm running now.

    Thank you!

  • Suddenly won't scan hp 8600 function, and the hp Solution Center does not connect?

    I have been regularly using scanning, copying and printing to my HP 8600 printer features 4/1. All of a sudden when I click on the printer icon only functions of the printer are listed. When I click on the HP Solutions Center (which I have not had to do was s/u w / a previous printer) the message says: HP Solution Center cannot run b/c your device installation is not complete. PLS, connect the cable usb or re - run the Setup program from the installation to a network installation CD. If this does not work...

    I insert the CD, re-directed the s/u and nothing has changed. Please notify.

    HP 4/1 8600

    Windows 7

    I see that you have had previous HP products, Katharine. I'm glad to know that you have the software installed for the 8600 with success now.

    However, the center of Solution software you used with the previous units is more used to the 8600. The software installed for the 8600 should have placed an icon that resembles the printer with the name of the printer it labeling on your desktop. This icon opens the wizard of HP printer with options to control the printer.

    Good impression!

  • After update to Sierra, Mac does not connect to the ReadyNAS device

    I have two Macs at home - an iMac and a MacBook Pro.  I also have a ReadyNAS device, which acts as a time for both Machine.

    I've updated the iMac to macOS Sierra.  The upgrade went smoothly, no error reported.  However, once it was up, I found that the iMac has questions is authenticating with the ReadyNAS via AFP (and / or he would authenticate, then delete the connection) and also not able to connect to the service of Time Machine on the ReadyNAS device.

    To be sure it wasn't the ReadyNAS, I went to my MBP - it still works under OS X 10.11 and shows all the problems.  AFP shares are accessible without problem, and Time Machine works as expected.

    Has nothing changed with Time Machine or AFP protocols under macOS Sierra, which could cause this?

    The ReadyNAS is a ReadyNAS Pro 4, running 4.2.28. firmware, if it is useful.

    Thank you very much for your help!

    AFP is not used by Sierra. Try using SMB instead, if your NAS supports. Or contact the technical support of the manufacturer for assistance.

  • Computer MAC does not connect to the HP 1200 printer

    I have a Mac computer and a HP 1200 LaserJet printer.  All appropriate cables are connected, it has enough ink, and just print job stay forever in Quebec.  For an hour or so and then print.  Why the lag time?

    It is certainly strange.  Here are a few ideas:

    -Run the software update to ensure that you have everything updated.

    -Download the latest sofware to Apple 10.5 HP printer drivers HP

    -Restart your Mac and your printer.

Maybe you are looking for

  • with a formula node

    Hello I have a little problem with the node of the formula. I'm trying to multiply h (Planck's constant) in c (speed of light), already set in Labview. But I can't connect them to the entries of a node formula because of the units. In addition, I hav

  • types of files in llb

    Hello I am looking for a complete list of the types of files that can be saved in *.llb. Y at - it all? Thanks in advance!

  • JavaScript does not work in Windows Vista

    I need help to make my Javascript work in my computer.I check several times my Security tab, and all the javascript is enabled in the enable position.JavaScript is updated to the last shape. The problem is that I do NOT see some of the Gametrakers in

  • The paper feed of my printer Photosmart C4680 does not work

    Hello I tried to reset my printer, but the paper source always pulls the paper on an angle and then crashes.  This seems to have started all of a sudden.

  • BlackBerry Smartphones BB Curve 8520 cannot change or add contacts

    Hello I can't add, edit my contacts, Ive tried an installation of fb and twitter think that they wee my last update now that harm I keepo having to restart the device