Not able to access Internet in browsers on Mac but can access everywhere else

Question

Level 1

1 points

Not able to access Internet in browsers on Mac but can access everywhere else

After I have upgraded to 10.9, I face this at least thrice or more a day(and would resolve only after a system restart):

Suddenly browsers(Chrome, Safari, Firefox - all of them) shall stop connecting to the Internet

My other devices Android phone and RPi connects just perfect (even via Android Firefox and Chrome browsers). Not even speed problem or lag
Even on my Mac every thing else i.e. Adium, Dropbox, CloudApp etc works just fine, they are connected to the Internet as they should be
Just the browsers do not work. Not at all. Tried restarting them etc.

What I have not done or done:

I have not made any system changes, I swear.
When I try traceroute <website> it reaches their servers and does it fast as it does when I do with normal conenction(i.e. having Internet in the browsers)

Here's some background:

I have updatd to Mavericks
I connect to Internet via a Linksys Router and my MB Air is connected to router via Wi-Fi
I've Sophos anti-Virus installed(for 6 months+)
I have a raspberry pi(Ethernet) and an Anfroid phone(WiFi) connected to the same router and Internet (for 1 year+)

MacBook Air, OS X Mavericks (10.9)

Posted on Oct 27, 2013 6:27 AM

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Answer 1

Eric Root

Level 10

685,233 points

Jan 6, 2017 7:32 PM in response to Kikketer

You might want to consider starting a new discussion. Since this one is marked solved and is a couple of years old, less people are likely to look at it. A new post would be much more visible. You can link to this one.

DNS Settings - Troubleshoot

Try a SMC reset. The article covers when this is required, but doing this will not affect anything.

Reset SMC

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Answer 2

Kikketer

Level 1

4 points

Jan 5, 2017 7:24 PM in response to LeBalladeer

I have this same issue ever since the upgrade. I do not (and never did) have any antivirus installed and now seeing that solves the issue, I wish I did.

I've tried Chrome, Safari and Opera. All fail to connect to the internet, while a ping to www.google.com works fine in the terminal.

I did find it happening quite often while I was using google hangouts, almost every 5 minutes. The fan on the machine would actually spin up as well right before the network would drop. Has anyone narrowed down the non-antivirus solution to this?

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Answer 3

Oct 27, 2013 6:29 AM in response to LeBalladeer

Make sure the Firewall is turned off in System Preferences > Security & Privacy > Fireall

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Answer 4

Paul_31

Level 6

14,172 points

Oct 27, 2013 6:32 AM in response to LeBalladeer

Maybe - even temporarily - uninstall Sophos using the uninstaller in the Applications folder, just to rule it in or out as being a possible cause. Mavericks has just been released so I guess it's possible Sophos may need an update.

You can always re-install it after testing if it proves not to be the cause.

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Answer 5

LeBalladeer Author

Level 1

1 points

Oct 27, 2013 6:35 AM in response to Carolyn Samit

Well, my Firewall is switched ON but it has been so since the day I bought my Macbook Air and what was an year ago.

Also,

I never faced this problem before upgrading to 10.9.
I do not change Firewall setting after restart or before it the Internet works just fine.
It's just that everyday after 7-8 hrs (my guess) it just stops connecting on in browsers
As I have pointed out it works just fine everywhere else.

Could you please let me know what is the reason and why should I better diable Firewall even though I have it ON like this since the beginning?

Thanks.

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Answer 6

LeBalladeer Author

Level 1

1 points

Oct 27, 2013 6:36 AM in response to Paul_31

Sure, thanks.

Will sure try it. I will wait for some more answers though. Maybe someone else is facing this and maybe someone knows a fix or root cause.

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Answer 7

adinnc

Level 1

0 points

Oct 27, 2013 10:31 AM in response to LeBalladeer

i am also facing the wifi disconnet problem with the browsers.

i haven't installed any firewalls still facing the issue. Looking for the solution.

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Answer 8

LeBalladeer Author

Level 1

1 points

Oct 27, 2013 10:34 AM in response to Carolyn Samit

I tried disabling firewall and it didn't help. Same behaviour. I even left wirewall disabled and restarted and after 3-4 gours it happened again.

I even tried removing Chrome and then installing it again. Didn't work.

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Answer 9

LeBalladeer Author

Level 1

1 points

Oct 27, 2013 10:37 AM in response to adinnc

Any more info? Since when you are facing this? After Mavericks upgrade?

Please share details, maybe we can ourselves figure something out, because if you call Apple they will drive you mad with routine checks for 2-3 days and then will tell you to visit a service centre and here in India all they do it format your entire hard drive.

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