MacBook Pro :: Suddenly Can't Connect To Internet Running OS X Mavericks (10.9.4)

Aug 30, 2014

I have a 2013 Retina MacBook Pro, and, until recently, all of the networking was running just fine. In addition to the OS X Mavericks, I also have the Developer Preview of OS X Yosemite on another partition. A couple of days ago, when I booted up in the Mavericks partition, I had full signal on my Wi-Fi, but I couldn't open any webpages or the App Store, etc. The strange thing is that the Yosemite partition can connect to the Internet, but the Mavericks partition cannot. All of my other devices can utilize the Wi-Fi so it isn't an issue with my router or modem. I've tried recreating the Yosemite settings on the Mavericks partition, but that hasn't worked either. 

I've tried several things to no success:
Fixing Permissions
Adding 8.8.8.8 to my DNS
Checking to make sure no Proxies are selected (nothing was selected).
Checking to make sure I'm using DHCP, which I was.
Pinging several websites to see if I get a result, which I did.
Removing and re-adding Wi-Fi to the Network Services.
Switching to Ethernet. 

Like I said, Yosemite can connect just fine, but Mavericks cannot.

Info:
MacBook Pro (Retina, 13-inch, Late 2013), OS X Mavericks (10.9.4)

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Jun 4, 2012

I don't know what happened, but a connection that I use frequently has suddenly stopped working on my 4-year-old MacBook (10.5.8). I have tried some of the fixes suggested for wireless connection problems, but none have worked. I live in a place where wireless is not always a viable option, so I need my Ethernet connection...

Info:
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It could be a firewall setting. It could be a software update. Whatever it is, I cannot connect to the internet using Extreme (it does connect to the internet using just plain old wifi). This is a sudden problem--it worked fine last week.

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Jun 19, 2014

My Macbook has been running slow for quite sometime, and regardless of my internet provider, it is deathly slow to load.  I have seen individuals post the Etre info, so I thought I would do the same.I understand this computer is quite old, just trying to get it back into fighting shape post college.  Whether it is a hardware upgrade (if possible).

EtreCheck version: 1.9.12 (48)Report generated June 19, 2014 at 10:51:49 PM EDT Hardware Information:  MacBook Intel Core 2 Duo (white, Late 2009)   MacBook - model: MacBook6,1  1 2.26 GHz Intel Core 2 Duo CPU: 2 cores  4 GB RAM Video Information:  NVIDIA GeForce 9400M - VRAM: 256 MB  Color LCD 1280 x 800 System Software:  OS X 10.9.3 (13D65) - Uptime: 24 days 0:1:23 Disk Information:  Hitachi HTS545050B9SA02 disk0 : (500.11 GB)  EFI (disk0s1)

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OS X Mavericks :: MBP Cannot Connect To Internet Via Airport Extreme

Aug 21, 2014

I cannot connect to Internet via my MBP (late 2013) through my Airport Extreme. It will connect to the AE fine, but the Airport Utility will show that the AE is not connected to the internet. Which is a lie, because other devices (iOS, Windows) will connect to internet through the same AE. working on the MBP under Bootcamp. So we can also rule out hardware issues with the WiFi chipset. This must be a MacOS (Mavericks) related issue.

Info:
MacBook Pro with Retina display, OS X Mavericks (10.9.4)

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Sep 3, 2014

My brand new MBP is taking ages to connect to the internet when in the living room but not in the study (where the router is). 

Two things are odd about this: 

1.  It IS connected to wifi, i.e. all the bars of the wifi symbol are black, indicating a strong signal.  The problem is that, using Chrome (and Safari), when I enter a web address, it just hangs for ages then eventually, sometimes after 5-10 minutes, it connects, and thereafter things tend to be fine. 

2.  My very old Dell laptop connects MUCH more quickly; I simply don't have the same problem with it.  It seems to not only find the wifi signal but to access websites more or less immediately. 

On the one hand, given this only happens when in the living room, some distance from the router, I would think the problem is simply that the wifi signal is too weak.

Info:
MacBook Pro (Retina, 15-inch, Mid 2014), OS X Mavericks (10.9.4)

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Nov 19, 2010

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Apr 12, 2012

I'm posting this on behalf of my father. He has a 2008 white macbook which has recently started running quite hot (160-180+F), even at idle. It has the latest version of 10.7 installed. He has an external HD with his previous copy of 10.6 and it exhibits the same behavior when booted from that system.He bugs me whenever he has computer problems told me that his MacBook had started randomly shutting down with no warning. I had similar trouble with a MacBook Pro and it turned out to be a faulty battery, so we got him a new battery, figuring it couldn't hurt to have a fresh one with a 4 year old computer. it didn't solve the problem at all.

Later he said that he noticed the computer felt hot, so he decided to run a small fan blowing across the computer while it was on his desk, and that stopped the random shutdowns. So I thought, OK, this is an overheating issue. Maybe the fan isn't working properly, it's full of dust, something is hogging the CPU all the time, etc. 

The next time I was at his place I had him install fan control and a temperature meter. We noticed right away that the thing was running really hot. It was at 160-180F while at idle. He had menu meters installed, after a reboot we could see that the processor was sitting at 2-5% load. Not only did the sensors report the high temperate, but I could feel that the bottom of the case was very hot.We decided to open up the case and see if there was dust clogging things up, etc. There was some, but nothing clogging vents or anything. We blew it out nice and clean with compressed air anyway and put it back together. I even turned it on while we had it open so I cold see that the fan was actually spinning, and it was.

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Jan 1, 2010

I'm running OSX 10.5.8 on a Macbook Pro, and today I've been unable to connect to the internet via ethernet or wi-fi, unless I'm in safe mode. Then everything seems to work as it should, which makes me believe that this is a software issue rather than a hardware problem. I've tried making a new account with administrator priveleges, but that doesn't solve my issue. Does anyone have any advice on how I can connect to the internet under my normal user account, rather than in safe mode? I should note that I won't be able to get my hands on my repair CD or perform a clean install of OSX because that stuff is at home, and I'm in college. Also, I'm at a university and don't have a router. I just use the campus-wide wi-fi. Finally, my roommate has no problem accessing the internet in our room via ethernet or wi-fi, but I do. Thanks for the help everyone.

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May 10, 2009

I have a macbook a little over a year old. It's my first mac and I love it. Yesterday though it started acting really weird. I first noticed that it was really, really hot and the fan was running. I turned it off and back on and here's what I found out:

Applications are being deleted from macbook. ITunes, IPhoto, iChat have clear question marks over icon. There are 8-10 blank spaces in the Applications folder where applications have been deleted. However, data is still there (ex. pictures still there, but no iPhoto).

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Cannot open " System Preferences" or "Internet Preferences".

If connected to home computer will connect to internet and allowed to open internet preferences but still no system preferences.

If shut down....takes a while to come back on and starts up 2-3 times.

Also "Preview" is gone. Now " ColorSync Utility" opens.

Is this my hard drive dying? I'm tech challenged, so any help would be greatly appreciated.

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Dec 27, 2007

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Info:
MacBook Pro, Mac OS X (10.6.8)

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Dec 3, 2010

Let me start by saying that I know very little about how computers/networks, etc work.

I've had my macbook for a couple years (I don't even know how to find out what year it was made, I'd guess 2008). It just suddenly stopped allowing me to connect to the internet wirelessly at my house. I brought it to my college campus, where I've been able to connect all semester, and I cannot connect there either. I'm receiving wireless signals in both places with my phone.

When I go to system pref - network....and highlight airport, it says it's not connected even though i have all my bars at the top right of the screen.

It says "Airport does not have an IP address and cannot connect to the Internet."

I should point out that my brother's macbook pro still works fine wirelessly in our house.

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Info:
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May 13, 2012

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Info:
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May 29, 2012

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Question: 

1) Does the password I mentioned above mean that my neighbors can't access my internet, or are they able to do that and, in this case, I need to set another password somewhere else? 

2) If I need another password, how and where do I set it,

Info:
Mac Book Pro, Mac OS X (10.6.6)

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Sep 20, 2009

My PowerBook has been working extremely slow for the past couple of days. Restarting hasn't helped. Even though it's about 5 years old, it's never given me any trouble. Now I wanted to start FinalCutPro, and there's a popup saying: Configuration Error This software requires certain hardware or software which is missing. � 512MB of RAM.So I can't even start this program. It's really an emergency since I have to work with FCP

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Feb 15, 2012

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May 23, 2012

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Info:
iMac, Mac OS X (10.5.8), No Audio

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Jul 5, 2012

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Speeds are back to normal:  36Mbps down, 6Mbps up near the first AE and about 25/5 near the second wirelessly bridged AE.

Problem is with my iMac and another laptop. The network change must have corrupted both and each are only getting about 1/1 speeds. I tried restarting and renewing DHCP lease and trashing Airport Network passwords in the keychain as recommended by Apple and it solved the problem for a minute or two and then it returned.The iMac is only a year old and the laptop an older white MacBook.

Info:iMac, Mac OS X (10.7.2)

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Mar 13, 2008

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Mar 5, 2012

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Info:
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Info:
MacBookPro, Mac OS X (10.7.3), not sure if thats my operating syst

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Mar 8, 2012

my macbook pro cannot connect to the internet...but my iMac does!

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I just upgraded my airport extreme card to accept 802.11 b/g/n..i can  not connect to the internet..do i need to update something?

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