I have a 2009 MacBook Pro that won't connect to the Internet at my university while everyone is able to. How do I fix this?
My roommate has the same laptop as me and she connected perfect fine. I also was here last semester and I could connect with no problems at all. I came back to school this semester and suddenly I keep getting the exclamation mark saying I'm not connected. I'm also connected to the Internet on my iPad right now so I know it works. How do I fix this? Please help!
Try the basics first:
Change your router channel number. Most times this works & is all you have to do.
Disconnect & reconnect your modem. unplug it for about 10 seconds. Plug it back in. Do the same for Apple’s routers. Wait for everything to reboot.
System Preferences>Network
Click the Assist Me button.
In the next window that pops up, click the Diagnostic button & do the necessary.
Research Knowledge Base for network problems that pertain to the OS that is currently installed on your computer. See these basic networking KB Articles: http://support.apple.com/kb/HT1401 AirPort troubleshooting guide
http://support.apple.com/kb/HT4628 Wi-Fi: How to troubleshoot Wi-Fi connectivity
http://support.apple.com/kb/HT2712 Using network locations in Mac OS X
Manually provided DNS server addresses are higher priority than DHCP's
http://support.apple.com/kb/HT1714 Solutions for connecting to the Internet, setting up a small network, and troubleshooting
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What to do when you can't connect to the Internet
Also, run the Airport Utility app which is located inside the Utilities folder.
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If using a Linksys router, contact LinkSys Customer Support and/or post in their forums.
If using Apple's Airport, please re-post over in one of the AirPort Forums.
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Have you read for possible solutions over in the "More Like This" thread over here?----------------------->
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Change your router channel number. Most times this works & is all you have to do.
See KB Articles: http://support.apple.com/kb/HT1401 AirPort troubleshooting guide
http://support.apple.com/kb/HT2712 Using network locations in Mac OS X
============================
System Preferences>Network
Click the Assist Me button.
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Also, run the Airport Utility app which is located inside the Utilities folder.
=====================
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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.
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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. -
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I mostly use Safari. But I also tried it on Firefox, Mozilla, and Camino. Mac OS X. It's my work computer, so I've only tried it at the office. I have to be connected through the Ethernet cable to access my files and email on the server.
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While that is downloading you will have time to Print the Boot Camp documentation and read it (clearly you have not yet) -
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Hello a-czar-of-tv,
We've an article that can help establish and stabilize troublesome WiFi networks.
Wi-Fi: How to troubleshoot Wi-Fi connectivity
http://support.apple.com/kb/HT4628
Cheers,
Allen -
The problem is not happening with any other device that I have. My iPad, iPhone and another laptop all connect fine. In fact, it's not even the connection. The computer will connect to the net. It just will not open any page. It starts to open and then hangs and hangs. It will not move. Weird since it worked great for three weeks and then all of the sudden, nothing. Click on Safari and I have short hope that it will move and NOTHING! Any thoughts why it would hang up like this and only with this specific network?
This is a known Lion issue, hopefully solved in 10.7.3. But may not be solved immediatly after updating, that was my case.
To make it work i followed those steps.
1.- Restart
2.- Lion 10.7.2 Update
3.- Uninstall netwokrs
4.- Shut down
5.- SMC reset
6.- Reinstall networks
I dont know whether all the above steps are necessary, but for me the update didn't work properly before SMC reset. (I am running a MBA mid2011)
Hope it helps,
Cheers -
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It appears that I am not alone in this problem, but none of the troubleshooting is helping.
There seems to be no trigger, but randomly 0-10 minutes the internet stops working on the Macbook. Sometimes restarting the wireless helps, most of the time it does not.
I know that my network/internet are working fine because all of our other devices stay connected with the Macbook drops. Is there a easy fix that I missed?
Thanks,
MikePlease test after taking each of the following steps that you haven't already tried. Stop when the problem is resolved. Back up all data before making any changes.
Step 1
Take the applicable steps in this support article. The Wireless Diagnostics program generates a large file of information about your system, which would be used by Apple Engineering in case of a support incident. Don't post the contents here.
Step 2
Disconnect all USB 3 devices. If you don't know which are USB 3, disconnect all USB devices except keyboard and mouse.
Step 3
If you're not using a wireless keyboard or trackpad, disable Bluetooth by selecting Turn Bluetooth Off from the menu with the Bluetooth icon. If you don't have that menu, open the Bluetooth preference pane in System Preferences and check the box marked Show Bluetooth in menu bar. Test. If you find that Wi-Fi works better with Bluetooth disabled, you should use the 5 GHz Wi-Fi band. Your router may not support it; in that case, you need a new router.
Step 4
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Step 5
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Step 6
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Step 7
Reset the System Management Controller.
Step 8
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Step 9
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.
Step 10
Make a "Genius" appointment at an Apple Store, or go to another authorized service center. -
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Restart the computer.
Start up in Safe Mode.
http://support.apple.com/kb/PH14204
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