OS 10.8x Slow Internet browsing

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benitok

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We've got two Macbook Pro's in the office and both are browsing the internet slow via our Proxy. Windows machines are fine, the websites open quickly on IE9 via the proxy.

What could be causing this on the MAC's?

Tried Safari and Chrome on the MAC and both are slow. Anybody have an idea?

Thanks,
Benito
 
Have you tried resetting the browser? Safari/Reset Safari... That will clear your history and caches but, heads up, it will also reset your Top Sites and clear your name, passwords and autofill entries.
 
@Noswal - How do I know if this is happening?

@greg0205 - Have not tried it yet. But Chrome is doing the same thing, so I don't think it is that. Seems more like a network config issue or some issue between the MAC and our proxy server.

Don't think it's a DNS issue as the Windows based pc's are working fine. Tried entering the IP of google.co.za and that also took long to open.
 
Not sure if it is related, but I found the following in the System log. This appears ever time I try to open a web page,

mdworker[1146] Unable to talk to ISboxd
sandboxd[1147] deny mach-lookup com.apple.is boxd
 
benitok said:
@greg0205 - Have not tried it yet. But Chrome is doing the same thing, so I don't think it is that. Seems more like a network config issue or some issue between the MAC and our proxy server.

Don't think it's a DNS issue as the Windows based pc's are working fine. Tried entering the IP of google.co.za and that also took long to open.
Click to expand...

Eish! My next suggestion would have been to switch to OpenDNS or Google DNS. You sure?
 
teraside said:
Check for updated Network Card drivers.
Click to expand...

This is a MAC, so that's not applicable.

*****

Can you define slow? Slow to respond? Slow to load?

What about latency? Are the pings higher on these machines than others? Are you using Wireless or Ethernet? What about if you ping a DNS address is that slower/faster than a straight ping to the same IP?
 
Try these two things on one machine (then compare to the other).

Set IPv6 to Link-local-only, not automatic or Manual.

Set your MTU to 1453.
 
SauRoNZA said:
This is a MAC, so that's not applicable.

*****

Can you define slow? Slow to respond? Slow to load?

What about latency? Are the pings higher on these machines than others? Are you using Wireless or Ethernet? What about if you ping a DNS address is that slower/faster than a straight ping to the same IP?
Click to expand...

I didn't know MAC's don't have drivers? So it's a system that runs without it? :confused:
 
greg0205 said:
Eish! My next suggestion would have been to switch to OpenDNS or Google DNS. You sure?
Click to expand...

Ok, I tried it again. google's IP does not seem to open on Windows machines as well so I tried cnn.com's IP and that open up fairly quickly. So I guess this might be a DNS problem. But why is it a problem with MAC and not with Windows?

Our DHCP and DNS server is our Windows domain controller. Our proxy server is linux. The primary DNS is the DC.

I did try Google's DNS server (8.8.8.8), but it did not help (Do I need to restart the MAC?)
 
teraside said:
I didn't know MAC's don't have drivers? So it's a system that runs without it? :confused:
Click to expand...

There are drivers but since the system is purely designed by Apple there is no need to update "third party" drivers. Any update would be included in the relevant system update.
 
Tried the OpenDNS server IPs for the DNS settings, but it is still slow resolving names.

Example:
Apple Macbook Pro (OS 10.8.2) (Safari and Chrome)
cnn.com - 15 seconds to open
157.166.226.25 (cnn.com) - 2 second to open

Windows 7
cnn.com - 3 seconds to open
157.166.226.25 (cnn.com) - 2 second to open

Same DHCP, DNS and proxy server used on the MAC and Windows.
 
GreGorGy said:
If speedtest.net rates are similar for both OSes, we can eliminate the browser and then look to two possible other causes:
(1) DNS
(2) Java or WebKit leaks.
Click to expand...


Speedtest.net
MAC
Ping 43ms
Download 6.63 Mbps
Upload 4.12 Mbps

Windows
Ping 54ms
Download 7.84 Mbps
Upload 6.59 Mbps
 
teraside said:
I didn't know MAC's don't have drivers? So it's a system that runs without it? :confused:
Click to expand...

No they do have drivers of course, but it's built into the OSX updates directly as they control the hardware platform remember.

So there's no way for the user to check which driver they are on and update it manually (well there is but that's highly advanced) instead you just make sure you have the latest updates loaded and you'll automatically have the latest drivers.
 
benitok said:
Tried the OpenDNS server IPs for the DNS settings, but it is still slow resolving names.

Example:
Apple Macbook Pro (OS 10.8.2) (Safari and Chrome)
cnn.com - 15 seconds to open
157.166.226.25 (cnn.com) - 2 second to open

Windows 7
cnn.com - 3 seconds to open
157.166.226.25 (cnn.com) - 2 second to open

Same DHCP, DNS and proxy server used on the MAC and Windows.
Click to expand...

Did you try this?

Code: 
Try these two things on one machine (then compare to the other).

Set IPv6 to Link-local-only, not automatic or Manual.

Set your MTU to 1453.
 
@SauRoNZA - I changed MTU to 1453 and changed IPv6 to Link-local-only.

I get mixed results now. If it is the first time I open a page, it can take anything between 10 and 25 seconds. If I open the page a second time, it opens quickly, but if I close the browser and try again it takes long the first time.

I also tried the following before I made the changes to the MTU and IP6,

1. In Safari, go to prefences and remove Cookies, then Develop menu, and empty caches.

2. Shut down the machine and unplug it for one full minute. This resets the SMC.

3. Start up in safe mode (hold shift key after hitting power button until you see the apple icon on screen) then go to Utilities folder in Applications and open Disk Utility. Select Mac HD on left, then Verify Disk. When Verify Disk is completed, click on Verify Permissions. After completing this step, if any permission problems are listed, click on Repair Permissions.

4. Shut down the computer, and start up while holding 4 keys at the same time; Option, Command, P, and R. Hold these keys down until you hear the computer chime twice. This step resets the PRAM.

https://discussions.apple.com/thread/4142168?start=45&tstart=0
 
Last edited:
SauRoNZA said:
No they do have drivers of course, but it's built into the OSX updates directly as they control the hardware platform remember.

So there's no way for the user to check which driver they are on and update it manually (well there is but that's highly advanced) instead you just make sure you have the latest updates loaded and you'll automatically have the latest drivers.
Click to expand...

The closest thing I have touched to a MAC was an ipod, so I'm not that clued up with it. Thanks for the explanation. I always see, especially on printer discs that there are MAC drivers etc.
 
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