MacBook will not connect to the internet via ethernet cable anymore.

My MacBook apparently decided the other day that it no longer desired to connect to the internet through an ethernet connection; it still works perfectly through a wireless network. I am a university student and so there is wireless almost everywhere so it's not so bad, but I cannot connect in my dorm and it's becoming a bit of a pain. I have tried to connect through several known working ethernet ports and no matter what my computer thinks it's not even plugged in. It's even more strange because I just woke up one morning and it was no longer working. Everything else it totally normal, save this one little inconvenience. Any ideas?

So I'm having the same problem. I woke up one morning and my macbook's ethernet connection suddenly stopped working. For some reason It wont recognize the cable.... I have tried 3 different cables and theses cables work with my sisters PC so I know the cable is not the issue. Im also living in college dorms which seems to be a commonality with this issue. I've searched for answers all over and I really don't have the time to make it to the mac store anytime soon. My wireless works but it's not allowed in my college dorms for security reasons(lame). Please help!...
Apple needs to formally address this issue.

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Macbook Pro suddenly will not connect to the internet via ethernet cable.

I know this is a long shot... but I figured I would give it a try.
My macbook pro suddenly does not connect to the internet via ethernet cable. Please bear with me, as I am not very tech-savvy - I will try my best to describe the symptoms!
I connect to the internet via ethernet (we don't have wifi). It was working before I went to work, and when I came home I suddenly couldn't get anything to work (I know everyone says this, but I truly didn't mess with anything). Internet browsers just think for awhile and then turn up the 'You are not connected to the internet' error.
I went into my network preferences and curiously, the 'Ethernet' shows a green dot and says 'connected'. However it says 'Authentication server is not responding' underneath the last part that says '802.1X: WPA: eduroam' (I think that is my user profile).
When I go into my 'security' settings I can see that my firewall is off, so that shouldn't be causing any problems.
I've tried restarting the router and computer itself many times. Diagnostics just gets to a certain point and reports back 'Network Diagnostics cannot fix the current networking problems.' I've also tried switching to a different ethernet cable, and I tried both cables out on a PC laptop and it connected without issue. Additionally, I brought my macbook along to a friend's house and it connected to his wifi just fine, so the problem appears to just be with ethernet connections.
I know it's hard to troubleshoot this kind of thing without being there and having a look at the computer yourself, but any tips wouild be greatly appreciated.

As I mentioned above, I am not very tech savvy so I have no idea why a wireless protocol would be showing up there, I'm just listing everything I see in hopes that someone might know something I can try. This is why I am asking for help here - I'm not sure what has happened that has made me unable to connect, especially since it seemingly occured while nobody was using the computer.
I guess I should clarify that I'm not a total hillbilly- normally my firewall is set to 'on', but I set it to 'off' to try and troubleshoot the issues here as I was told that sometimes it can interfere with the computer's ability to connect to the internet. If this is not the case and firewall does not affect anything, I will turn it back on while I try to fix this.
I have tried the method you mentioned above a few times - I actually contacted my ISP earlier this week and they recommended resetting the router like that. They didn't mention any known network issues.

PowerMac G4 will not connect to the internet via ethernet

I am normally a very mac savy person, but I cannot get this to work...
I have an Airport Express connected to speakers, a USB printer and an ethernet hub, which is connected to a cable modem and also a PowerMac G4 via ethernet. There is also a wireless iMac thrown into the mix. All hardware has up-to-date software.
The wireless iMac gets online, prints and plays music wirelessly.
The wired PowerMac G4 will not connect to the internet via ethernet, it is killing me.
I have gone through all the settings and cannot figure this one out. I really appreciate all advice.
Thanks,
G4 Mac OS X (10.4.8)

Hi pradagirl,
Welcome to Apple Discussions!
Leaving the other peripherals out, tell us the connection sequence from the G4 outbound.
Also, you might gain more insight at the Networking Forum
Regards,
John
G5Dual 2Ghz  23" ACD  iSight Mac OS X (10.4.8)  20" Intel iMac 

Macbook Air will not connect to the internet via Wi-Fi or Ethernet

Macbook Air will not connect to the internet via Wi-Fi or Ethernet? Any ideas why not and how to fix this problem?

Power down the router. Unplug the cord from the wall. Wait a while.
Plug the cord back in. Restart the router.
Wait until all the lights are lit up properly.
Restart the computer.
Best.

Hi All, My MacBook will not connect to the internet at my apartment.

Hi All, My MacBook will not connect to the internet at my apartment. I live with 5 other people and it works for all of them. It worked for me until about 3 weeks ago. My internet works fine at other places like cafes or other folks' homes. I've tried many things but am having no luck at all. If anyone has any suggestions, I would love to hear them! Thanks!

Some routers (such as my Netgear) seem to work better if you input your device's MAC address manually while on their online site. That site address should be in the manual and usually starts with something like 192.168.x.x Once on that site, input your Mac's address - a series of numbers and letters i.e. 2f.3c.45.2a.xx.xx (go to Network Preference Pane, select Airport, click on Options: at the bottom it shows "airport ID". I have all my devices listed; with that you can create a special IP address i.e.192.168.1.1, .2, .3, and so on. I've never lost connection using that method.

My MacBook will not connect to the Internet, but all of my other devices connect perfectly.

I have a MacBook and it will not connect to the Internet. It connects to wifi, but then when I open Safari, the page does not load. I have tried forgetting the wifi network, deleting keychain passwords, and restarting the computer, but nothing has worked. Does anyone know what I can do to fix this?

Did you set DNS Server properly?
System Preferences -> Network -> Advance... -> DNS

My macbook pro will not connect to the internet via wifi or ethernet connection

Hey guys just a few days ago randomly my 2011 macbook pro stopped connecting to the internet. My girlfriends macbook still connects fine as well as both of our iphones and my tv. Under network in system prefrences wifi is yellow and says self assigned ip, however ethernet says that it is connected with a green light but safari nor any other internet using applications will work. I even tried downloading google chrome from my girlfriends mac book and moved to my computer via flash drive but still no go on the internet. Please help me.
-thanks

Please read this whole message before doing anything.
This procedure is a diagnostic test. It won’t solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
Third-party system modifications are a common cause of usability problems. By a “system modification,” I mean software that affects the operation of other software — potentially for the worse. The following procedure will help identify which such modifications you've installed. Don’t be alarmed by the complexity of these instructions — they’re easy to carry out and won’t change anything on your Mac.
These steps are to be taken while booted in “normal” mode, not in safe mode. If you’re now running in safe mode, reboot as usual before continuing.
Below are instructions to enter some UNIX shell commands. The commands are harmless, but they must be entered exactly as given in order to work. If you have doubts about the safety of the procedure suggested here, search this site for other discussions in which it’s been followed without any report of ill effects.
Some of the commands will line-wrap or scroll in your browser, but each one is really just a single line, all of which must be selected. You can accomplish this easily by triple-clicking anywhere in the line. The whole line will highlight, and you can then either copy or drag it. The headings “Step 1” and so on are not part of the commands.
Note: If you have more than one user account, Step 2 must be taken as an administrator. Ordinarily that would be the user created automatically when you booted the system for the first time. The other steps should be taken as the user who has the problem, if different. Most personal Macs have only one user, and in that case this paragraph doesn’t apply.
Launch the Terminal application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Terminal in the icon grid.
When you launch Terminal, a text window will open with a line already in it, ending either in a dollar sign (“$”) or a percent sign (“%”). If you get the percent sign, enter “sh” and press return. You should then get a new line ending in a dollar sign.
Step 1
Triple-click the line of text below to select it:
kextstat -kl | awk '!/com\.apple/{printf "%s %s\n", $6, $7}'
Copy (command-C) the selected text to the Clipboard. Then click anywhere in the Terminal window and paste (command-V). Post the lines of output (if any) that appear below what you just entered. You can do that by copy-and-paste as well. Omit the final line ending in “$”. No typing is involved in this step.
Step 2
Repeat with this line:
sudo launchctl list | sed 1d | awk '!/0x|com\.(apple|openssh|vix)|edu\.mit|org\.(amavis|apache|cups|isc|ntp|postfix|x)/{print $3}'
This time you'll be prompted for your login password, which you do have to type. It won't be displayed when you type it. Type it carefully and then press return. You may get a one-time warning not to screw up. You don't need to post the warning. If you see a message that your username "is not in the sudoers file," then you're not logged in as an administrator.
Note: If you don’t have a login password, you’ll need to set one before taking this step. If that’s not possible, skip to the next step.
Step 3
launchctl list | sed 1d | awk '!/0x|com\.apple|edu\.mit|org\.(x|openbsd)/{print $3}'
Step 4
ls -1A /e*/mach* {,/}L*/{Ad,Compon,Ex,Fram,In,Keyb,La,Mail/Bu,P*P,Priv,Qu,Scripti,Servi,Spo,Sta}* L*/Fonts 2> /dev/null
Important: If you formerly synchronized with a MobileMe account, your me.com email address may appear in the output of the above command. If so, anonymize it before posting.
Step 5
osascript -e 'tell application "System Events" to get name of every login item' 2> /dev/null
Remember, steps 1-5 are all copy-and-paste — no typing, except your password. Also remember to post the output.
You can then quit Terminal.

TS1398 my iphone 5s will not connect to the internet via wifi since the latest update was performed this morning need help

unable to connect to the internet via wifi since the latest update

Hello,
Try Reseting your decive, check your settings or manually restore your iphone bu putting it in DFU mode and connecting it to iTunes there are many youtube videos on how to do this I hope it works and wish you good luck with it. If It doest call apple care.

My apple tv is not connecting to the internet via ethernet

Got home tonight, have not been having problems before this, turned on my tv and started the aptv the same as always
and got the regular splash screen with the usual icons, netflix, Hulu etc.
Went to Hulu and it went to the usual menu screen, but from there it would not connect.
Tried to restart, at the end of the restart cycle the screen said it was trying ot set time and date.
Seems like it can not do this and does not connect to the internet.
I have it on a ethernet cable to a modem that works fine for my iPhone and my laptop via wifi, and
have not had any other problems, so not being able to watch tv is pretty frustrating.
Has Apple done something in preping for next weeks iOS7 launch and suspected aptv upgrades????
What is going on????

I would test something else connected by ethernet like the laptop to make sure it was not a router thing
then I would connect the appletv by usb to the laptop and use itunes to restore the firmware if that was the issue
then I would try bringing it to a friend or relatives place and test it there
if all else failed it would resturn it under warrenty

Macbook will not connect to the internet

I was online then dropped off. I tried to reconnect and nothing. I have an iPhone which is picking up my internet activity and I have a Windows work computer picking up internet activity. Just the Macbook wont work. It seems dead to the internet.

So I'm having the same problem. I woke up one morning and my macbook's ethernet connection suddenly stopped working. For some reason It wont recognize the cable.... I have tried 3 different cables and theses cables work with my sisters PC so I know the cable is not the issue. Im also living in college dorms which seems to be a commonality with this issue. I've searched for answers all over and I really don't have the time to make it to the mac store anytime soon. My wireless works but it's not allowed in my college dorms for security reasons(lame). Please help!...
Apple needs to formally address this issue.

My macbook will not connect to the internet!!!

So I just recieved a used macbook from ebay today. I was so excited because everything was working perfectly - internet and all!! Then, after about 20 mins of being on the internet, the connection was lost. Now everytime I try to connect it says "Connection Timeout". All other devices still work perfectly on the same wifi. I have researched this all day and tried everything.. Nothing works. Someone please HELP!!!!!!

Hello Brooke Marie
Welcome to the Apple Support Communities. Sorry to hear about your Wi-Fi issues, I found an article that will give some troubleshooting steps with isolating Wi-Fi issues.
Troubleshooting Wi-Fi issues in OS X Lion and Mac OS X v10.6
http://support.apple.com/kb/HT4628
Regards,
-Norm G.

My Macbook Pro will recognize my network but will not connect to the internet

My macbook will not connect to the internet at home. It works fine on other networks, but at home it will recognize my network name but says it will not be able to connect to the internet. This issue just sort of came up randomly. I have shut the router off (I use Verizon Vios) and reset it and that doesn't work. The little Wifi status at the top of the screen just has an exclamation point over it. I haven't changed any of the default network settings. It just stopped working. When I take it to work and use their network or free wifi available at stores etc...it connects just fine. A few weeks ago upgraded my operating system to Mavericks, but it has worked up until this morning.

Do this. Go to Apple menu / System Preferences / Network.
In the left column, click Wi-Fi. Next click Assist me, then Assistant. Follow the on screen instructions.

Every time my MacBook Pro is put to sleep, it will not connect to the internet when reopened unless diagnostic assistant is performed. Ridiculous!

Every time my MacBook Pro is put to sleep, it will not connect to the internet upon reopening unless I perform diagnostic assistant.

Test after taking each of the following steps that you haven't already tried. Back up all data before making any changes.
1. Make sure the network is on the preferred list by following these instructions. It's important to read the article carefully, as it's the starting point for any further efforts to solve the problem. If you skip any of the steps, the problem may not be solved. Make sure the box marked
Remember networks this computer has joined
is checked.
2. Follow the instructions in this support article under the heading
Symptom: After restarting or waking from sleep, my computer might not connect to the Internet
3. Reset the PRAM.
4. Make a note of all your settings for Wi-Fi in the Network preference pane, then delete the connection from the connection list and recreate it with the same settings. You do this by clicking the plus-sign icon below the connection list, and selecting Wi-Fi as the interface in the sheet that opens. Select Join other network from the Network Name menu, then select your network. Enter the password when prompted and save it in the keychain.
5. From the Location menu at the top of the Network preference pane, select Edit Locations. A sheet will drop down. Click the plus-sign button to create a new location. Give it any name you want. In the new location, set up the Wi-Fi service with the same settings you used before. Click Apply and test.
6. Launch the Keychain Access application. Search for and delete all AirPort network password items that refer to the network. Make a note of the password first.
7. Repair permissions on the startup volume.
8. Turn off Bluetooth and test.
9. Reset the System Management Controller.
10. Reinstall OS X.

My macbook air will not connect to the internet due to a self assigned IP address. I have tried trawling the support forums, but either I can't understand the suggestions, or they don't work. Please explain to me in simplest terms how to fix this. Thanks!

My macbook air will not connect to the internet due to a self assigned IP address. I have tried trawling the support forums for hours, but either I can't understand the suggestions, or they don't work. Please explain to me in simplest terms how I can fix this. Many thanks!

The warranty entitles you to complimentary phone support for the first 90 days of ownership.
If you bought the product in the U.S. directly from Apple (not from a reseller), you have 14 days from the date of delivery in which to exchange or return it for a refund. In other countries, the return policy may be different. If you bought from a reseller, its return policy applies.

MacBook Pro will not connect to the internet

Suddenly, my MacBook Pro will not connect to the Internet--even when I take the cable from the Time Capsule and plug it into the laptop...
-Internet is good
–WiFi is connected
-both work with my iPad...

You should show WiFi:
Do you have it turned on?
Clinton

MacBook will not connect to the internet via ethernet cable anymore.

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