Macbook pro occasionally fails to connect to the internet

Hi... A few months ago I bought a new 15 inch Retina display MacBook Pro. it's the third macbook pro I've owned but the first with the following problem. About 5% of the time, when I boot the computer it fails to connect to my home network. While this is happening I will click on Network Diagnostics. I will, one at a time, walk through the following screens of that diagnostic tool..
Select Location... Always shows my Location so I click Continue
Choose network port configuration... That always shows the correct Wi-Fi radio button selected so I again click Continue
Select Wi-Fi Network... It always shows my home network so again I just click Continue
Then comes the interesting part. The next screen that comes up is the one where you choose between DHCP or PPPoE. The moment that screen comes up, first DHCP is already selected which is correct. But more importantly the moment that screen comes up, the network connects and a new window opens up that says,
Network Change Detected.
Your network configuration has changed. Click OK to proceed to the next step
What could be wrong that prompts the system to fail to connect once in a while even though it seems to only need me to click through the Network Diagnostic without actually doing anything and when I get to this DHCP screen, boom it connects by itself???
Any ideas of what's going on???
thanks... bob...

1. Power off the router. Unplug it from the wall. Wait a while.
    Plug it back to the wall. Power the router on. Wait until all the lights are lit properly. It will take a while.
    Restart the computer.
    Start up in Safe Mode.
    http://support.apple.com/kb/PH14204
2. Deselect Proxies if selected.
    System Preference > Network > Advanced > Proxies Tab
    Under "Select Protocol", uncheck any box if selected.
    Click "OK" then "Apply”.

Similar Messages

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.

On my MacBook Pro when I am connected to the internet via an Ethernet cable, Facebook pictures do not load. They show up as white boxes with blue question marks.

On my new MacBook Pro when I am connected to the internet via an Ethernet cable, Facebook pictures do not load. They show up as white boxes with blue question marks. This also happens on a website editor. But, when I am connected to the internet via Wifi, everything load properly. This is my work computer, so I have to be able to connect through the Ethernet cable to access everything. Please help me!

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.

My macbook pro says I am connected to the internet but won't load pages

my macbook pro says I am connected to the internet with a strong signal but it won't load any pages. The internet works fine on my iPhone and other computers so it must be an issue with my macbook. Any suggestions??

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.
In the next window that pops up, click the Diagnostic button & do the necessary.
Also, run the Airport Utility app which is located inside the Utilities folder.
=====================
If using Linsys 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.

Apps on my Macbook Pro don't function/connect to the internet

For some reason some apps on my Mac will not work or connect to the internet. The ones not working are: iTunes (can't connect to the iTunes store but I can play media I have locally), App Store, Safari, Beatport App, and Adobe Reader; but I wouldn't be surprised if there were more that I just haven't checked. Safari and Adobe Reader both open and function normally for about 5 second or so and then just freezes and doesn't respond. Everything else just says it's opening but never actually does and eventually stops responding. I also can't do software updates for iTunes or my Mac in general.
I tried uninstalling Adobe Reader and installing it again from the Adobe website, but when I open the installer it doesn't respond either, so now I just don't have Adobe Reader installed anymore.
I also tried disabling my firewall and messing with my security/network settings but didn't have any luck. Anyone have any ideas??

Reboot into OSX, run Boot Camp, select Download Windows Support Software.
While that is downloading you will have time to Print the Boot Camp documentation and read it (clearly you have not yet)

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
============================
What to do when you can't connect to the Internet
Also, run the Airport Utility app which is located inside the Utilities folder.
=====================
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.
============
Have you read for possible solutions over in the "More Like This" thread over here?----------------------->

Macbook Pro will not stay connected to the internet

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,
Mike

Please 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
Open the Energy Saver pane in System Preferences and unlock the settings, if necessary. Select the Power Adapter tab, if there is one. Uncheck the box marked
Wake for Wi-Fi network access
if it's checked.
Step 5
Open the Network pane in System Preferences and make a note of your settings in the Wi-Fi service. It may be helpful to take screenshots of the various tabs in the preference pane. If the preference pane is locked, unlock it by clicking the padlock icon and entering your administrator password. Delete Wi-Fi from the service list on the left by selecting it and clicking the minus-sign button at the bottom. Then recreate the service by clicking the plus-sign button and following the prompts.
Step 6
In the Wi-Fi settings, select
Advanced... ▹ TCP/IP ▹ Configure IPv6: Link-local
Click OK and then Apply.
Step 7
Reset the System Management Controller.
Step 8
Reset the PRAM.
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.

My IPOD and Macbook Pro both will not connect to the Itunes store through Itunes says no internet connection, but I can connect through safari and I have a internet connection

My IPOD and Macbook Pro both will not connect to the Itunes store through Itunes says no internet connection, but I can connect through safari and I have a internet connection

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.

HT4796 Can Windows 7 be installed on my new MacBook Pro, through my network connection? The disc would be in my Windows desktop.

Can Windows 7 be installed on my new MacBook Pro, through my network connection? The disc would be in my Windows desktop.

I wouldn't recommend installing through a network connection.
For a Virtual Machine:
If you have the Win 7 media (DVD), use an app like PowerISO or MagicISO to make an ISO file of the install disc and use that.
For BootCamp:
Use the original install media and BootCamp Assistant, to install from your DVD Drive.

My 13" early 2011 macbook pro is having trouble connecting back to internet after going to sleep. before updating to EFI 2.7 it was perfect now after updating its gone bad

My 13" early 2011 macbook pro is having trouble connecting back to internet after going to sleep. before updating to EFI 2.7 it was perfect now after updating its gone bad.

Same issue here too. I will try reinstalling the firmware update. This has happend to me twice. The only way to correct the issue was to reboot.
Thanks!

My iphone 5 won't make a call when i fail to connect to the internet via 3g

My iphone 5 won't call when i fail to connect to the internet via 3g.
At work i dont have wifi i have 3g, if i launch say the sky go app,or the iplayer, sometimes they work and everything is fine...sometimes they wont load as 3g for whatever reason cant get a connection at that particular time........ if i then try and make a call the call will fail. I've experimented 25 + times and this is definately the cause.
(note: when the 3g connection does work, the phone has absolutely no problem calling people)
Anyone had this problem?
Even better has anyone got a solution?
Thanks,
Nick.

Are you sure that the carrier's signal is strong where you are having this problem? Certain building structures and locations have poor cellular signal strength and this often results in the "No Service" indication. Are other users able to get service in the same locations where you have problems?

Printing from MacBook Pro to a Printer Connected to the USB Port on A MacG5

November 17, 2009
Apple Tells Me: It is completely valid to connect the HP 4360 printer (not wireless) to the USB Port of my MacG5 and print pages from my MacBook Pro if I select Print Share in the Apple Preferences of my MacG5. The MacBook Pro and MacG5 are connected through a Router and a wired Local Area Network through a Router.
HP Tells Me: Since the D4360 is not a wireless printer and since it is not supported to print from a MacBook Pro on the same wired local area network also connected to a MacG5 computer. In particular, they said that use of the Print Share option on the MacG5 to print from the MacBook Pro will cause damage to the HP D4360 printer or print driver and when this occurs it will invalidate the warranty on the HPD4360.
Questions:
1. Is there any validity to the HP answer on this subject??
My analysis to date says that the Apple statement is 100% true, with the exception that if the driver is damaged it can be restored without any damage to the printer.
2. Is there any documentation of the HP concern?

Is there any validity to the HP answer on this subject?
No. It's very difficult for any software to damage a hardware component, and on the rare case the driver becomes damaged, which is also highly unlikely, it won't affect the printer's warranty.
(48665)

Balkin AC1000 DB fails to connect to the internet

I have a 2009 MacBook Pro 15" and I recently moved to a new town living in student accomodation. Each room has an ethernet port which connects directly to an extended LAN network. When I connect my mac directly to the ethernet port the internet works perfectly, I am even able to share the connection over wifi so that my iPhone and iPad are able to connect to the internet.
I bought a good router so that I could generate my own private network from the extended LAN without losing too much of the 100 mb/s speed from direct connection. When I connect the router to the ethernet port in room (the modem), im able to connect to the wifi network, and in my settings I have a green light under wifi for internet access, IP address and everything else - except there is no internet access. I can open safari and chrome and nothing connects to the internet.
I am also not able to access the internet when I connect the laptop to the router via ethernet cable, while the router is also connect to the modem via ethernet cable.
When im connected to the router over wifi im able to access http://router/ despite the CD programs (belkin router setup) not being compatible with OS Mavericks so im still able to set the router up. I spoke with tech support and they said i needed to manually set up the router using these steps (I had tried it before except for cloning the MAC address) so i gave it a shot and still nothing.
1. Press the Reset button at the back of the router for 30 seconds while it is powered on. Then unplug it from power for 1 minute afterward.
2. Plug the router to the modem and plug the main computer to the router's port 1.
3. Open a browser and type http:/router or http://192.168.2.1 on the Address bar. If it will ask you for a password, just leave it blank and hit OK/Submit.
4. Under the Internet WAN, click MAC Address. Click the Clone button to Clone Computer's MAC Address and hit Apply Changes.
5. Go to Wireless >Channel and SSID, change the SSID to any name you want your network to be and hit Apply Changes.
6. Go to Security. Set the Security Mode to WPA-WPA2 Personal mode and enter a wireless password (should be at least 8 characters, no spaces and special characters) and click Apply Changes.
7. Unplug the router from power for 1 minute and restart the computer to check the connection.
I feel like it should be quite simple considering i can turn my mac into a router, but I cant seem to turn my router into a working router.
Any ideas?

I may resort to that, once i figure it out ( i tried messing with DHCP and i eventually had to restore the router to its factory settings because i could no longer connect to it).
Ive noticed now that the firmware is now out of date (or always was) v 1.00.05 is the version im on, however v 1.00.28 is available for download off the belkin website, which I downloaded.
Problem I have now is that when accessting http://router/ while connected over wifi, the firmware update page doesnt recognise the file type and says "the file type or version is incorrect" and so the firmware doesnt update.
Annoyingly, it is the correct version/file type.
I hope all i need to do is get the firmware updated...

My MacBook keeps freezing everytime I connect to the internet

Everytime I connect to the internet it just starts to freeze and then I have to reboot my system

1. Quit Safari.
      Hold the shift key down and relaunch Safari.
2. Reset Safari.
   Launch Safari
   Click Safari in the menu bar.
   From the drop down select "Reset Safari".
   Uncheck the box next to " Remove saved names and passwords".
   Click "Reset".
3. Empty Caches
    Safari > Preference > Advanced
    Checkmark the box for "Show Develop menu in menu bar".
    Develop menu will appear in the Safari menu bar.
    Click Develop and select "Empty Caches" from the dropdown.

Hi, I am running the latest version of Firefox and at times it fails to connect to the internet. This is a intermittent problem. It also (sometimes) take very long to open after I open Firefox?

Firefox does not always connect to the internet or is very slow to open. It is not with specific sites and when it does happen I have to either wait or shut down and restart the computer. It does not happen with my other browsers. (Google chrome)

I have been having the same problem, it's as if Firefox's internet connection is broken at intermittent intervals. I tried disabling all my plugins, creating a new profile, everything on the page below and even updated to version 8, but nothing helped. I think it's been happening for a weeks or so, maybe since an update(?) but it seemed a lot worse today. It's not my connection as I've been using Chrome as an alternative which works fine. I have not tried rebooting my machine.
http://support.mozilla.com/en-US/kb/Firefox%20cannot%20load%20websites%20but%20other%20programs%20can

Macbook pro occasionally fails to connect to the internet

Similar Messages

Maybe you are looking for