Slow Internet in Snow Leopard 10.6.8

This post is to express my frustration with the recent updates to snow leopard for OS Lion upgrade compatibility.
Now, many web pages I browse through my iMac take forever to load. This issue was not present in previous updates.
Already tried lots of tricks suggested by many of you (thank you to all - very good people) without success (permissions repair, preferences verify, cleaning caches, IPV6 off, google dns servers, dns repair, dns flush cache, ethernet on the top order, disabling router`s firewall, trashing apple.alf.plist etc, etc,).
I´m sure this is an Apple issue and I hope they fix it soon.

If you search for slow internet browsing in support you will find many people with this kind of issue.
Moreover I already did a test with a Macbook Pro with the same router, same ethernet cable and browsing was totally smooth.
Anyway I`ll follow your advice and will check if there is anything wrong.

Similar Messages

Can we please have a FINAL solution to slow internet in Snow Leopard?

I've read so many discussions but none of the proposed solutions work for me.
I installed Snow Leopard a few days ago and ever since internet pages take forever to load.
Before SL my internet was running perfectly. I have the same strength connectivity, my router didn't budge and I didn't even move my laptop location. I'm convinced it is SL and I am not happy that I may have to uninstall it and have wasted $30.
I also couldn't believe that there is no way to contact Apple in a way they can respond. They're just leaving the solutions up to regular users and maybe offering an update if a few million people complain.
Anyways, does anyone have a solution to Slow Leopard?

WEB100 Enabled Statistics:
Checking for Middleboxes . . . . . . . . . . . . . . . . . . Done
checking for firewalls . . . . . . . . . . . . . . . . . . . Done
running 10s outbound test (client-to-server [C2S]) . . . . . 354.0kb/s
running 10s inbound test (server-to-client [S2C]) . . . . . . 1.55Mb/s
------ Client System Details ------
OS data: Name = Mac OS X, Architecture = x86_64, Version = 10.6.2
Java data: Vendor = Apple Inc., Version = 1.6.0_17
------ Web100 Detailed Analysis ------
Cable modem/DSL/T1 link found.
Link set to Full Duplex mode
Information: throughput is limited by other network traffic.
Good network cable(s) found
Normal duplex operation found.
Web100 reports the Round trip time = 225.94 msec; the Packet size = 1440 Bytes; and
There were 65 packets retransmitted, 295 duplicate acks received, and 309 SACK blocks received
The connection was idle 0 seconds (0%) of the time
S2C throughput test: Packet queuing detected: 2.41%
This connection is sender limited 37.36% of the time.
This connection is network limited 62.63% of the time.
Web100 reports TCP negotiated the optional Performance Settings to:
RFC 2018 Selective Acknowledgment: ON
RFC 896 Nagle Algorithm: ON
RFC 3168 Explicit Congestion Notification: OFF
RFC 1323 Time Stamping: ON
RFC 1323 Window Scaling: ON
Server 'web100.rit.edu' is not behind a firewall. [Connection to the ephemeral port was successful]
Client is probably behind a firewall. [Connection to the ephemeral port failed]
Information: Network Middlebox is modifying MSS variable
Server IP addresses are preserved End-to-End
Information: Network Address Translation (NAT) box is modifying the Client's IP address
Server says [217.235.176.70] but Client says [192.168.2.102]
Bandwidth speed: http://www.speedtest.net/result/686123629.png
There is another computer (PC) and it is running normally.
File download speed is fine.
By slow I mean 1 minute 15 seconds to load a page. It's only pages with a lot of pictures, but they were fast before.

Extremely slow internet on Snow Leopard - but not on Windows!

For the last month or two, my networking has been slow as ****.
I used to have 100 Mbit/sec, but now I'm down to 3 - 10 Mbit/sec.
What the heck?!
Since the day I got my iMac I've had Windows installed through Boot Camp, so I decided to check how it works on Windows, and it actually works.
What the heck?!
What could be the problem here? I'm using ethernet, so 8 Mbit is waaay too slow. I'm considering calling Apple Support to see if they have any idea what's wrong.
If any of you know what the problem could be, PLEASE help me out here :/
//Filip Bergström

On the Mac (since Windows doesn't exist here) open System Preferences->Network pane, Advanced button and select the Ethernet pane and make sure the cable select is set correctly.

Slow wireless with Snow Leopard

I've read many posts on the subject and tried most all the fixes, but nothing works and I need a work around.
Here is a summary:
Macbook Pro to Time Machine base wireless, through Actiontec GT701 DSL modem. Latest updates and firmware for all. Tested with all firewalls off.
Had no speed problems before Snow Leopard.
Web pages intermittently load very slow. Will work fast for a few minutes, then very slow for a longer periods of time, then repeat.
Direct connect via Ethernet to Time Machine, no speed problem at any time.
On different wireless hot spots including at work, no problem.
Test of DSL speed shows steady high speed performance.
Tried different DNS configurations, no effect. Tried at least 10 other recommended fixes,none worked.
Put in older Linksys WRT54G V5 in place of Time Machine. Same problem.
Same exact problem with my wife's MacBook Pro.
This points to a problem between Snow Leopard and the ActionTec modem. But since it worked just great with Leopard, is there something I can change in the ActionTec or in Snow Leopard to get back the previous performance????
I don't believe buying new hardware is a good trial and error solution, so I'm looking for a configuration solution.
Thank you in advance for you suggestions.

I am posting a solution that worked for me on this issue.
This was similar to an issue I had back with Leopard (10.5) and Entourage. Using Entourage with my Exchange Server, every time an OS update would come up, my connection was unstable and would routinely disconnect for no reason. I found a solution on one of the Mac Boards on the Internet (I do not remember which) that fixed the issue, and that same fix seems to work for this slow WiFi connection problem. This assumes you have the problem with your home WiFi, or the WiFi WAP (Wireless Access Point) you are having connection issues with. In my case I was using an Apple Airport Time Capsule Access Point.
I write these steps in the simplest terms possible to ensure even a novice can understand and follow.
1- Go to you Keychain Access (Applications -> Utilities -> Keychain Access)
2- Look for the name of your WiFi WAP/Server (It should say AirPort network password next to it)
3- Double Click and then click on Show Password on the Attributes window (May ask you to Authenticate yourself for access to the Password)
4- Write down the WAP Password (it may be case sensitive, so be exact)
5- Close Attributes window
6- Delete the entry with the name of the WiFi WAP name you selected on Step 2 above.
7- Close Key Chain Access window
8- Turn off your Airport on the menubar at the top of the screen (Airport Symbol -> Turn Airport Off)
9- Open System Preferences (Icon on your Dock) and then Click on the Network Icon
11- Click on the Airport entry and then on the Advanced button
12- Click on the Network Name of the WiFi/WAP you deleted in the Keychain Access (Step 6)
13- Click on the minus sign below the Network Names section (This deletes the WAP entry)
14- Click OK
15- Restart your Mac
What these steps do is erase the main entries that automatically connects you to your Airport WAP/Network account.
After Restart, do the following:
1- Once your Mac has restarted, then turn on your Airport (Airport Symbol -> Turn Airport On)
2- Once the Airport has scanned for available WAP's/Networks click on your chosen WAP/Network (assuming it is your Home WAP)
3- It should ask you for the WAP/Network password (If it automatically connects to your WAP then you did not delete one of the entries listed previously in step 6 and/or 13. You will have to start over.)
4- Input the Password you copied in step 4 above
5- Airport Icon should show that you are connected by going from Grey to Black lines.
6- You are done...
Once you follow these steps you should be connected to the Internet. You can test your Internet speed at www.speedtest.net
One optional step I do, which may make a difference for you, is that while the MacBook is restarting I disconnect power to the DSL modem for 10-15 seconds, and then re-connect it. This ensures you have a clean and renewed DSL connection with your provider.
One note of caution on this... when I did this fix for my Entourage problem under Leopard (10.5), every time an incremental OS update would come up, I found myself having to repeat these steps over again. It was not until Snow Leopard was installed that this issue completely went away. It seems that a new OS installation fixed whatever gremlin was laying underneath all of this.
This "Fix" did recently work on a 15" MacBook Pro 2009 model (10.6.5) that belongs to a friend of mine, and was experiencing very slow Internet WiFi speeds at his home. I hope it also works for you.
Good luck....

HP Color LaserJet 3500n - Slow Printing in Snow Leopard

I've installed all of the HP Printer Updates for Snow Leopard (even manually downloaded the latest entire HP Printer Update), Reset the Printing System and reinstalled all of my printers, but I still continue to have an issues where it takes over 4 minutes for the first page of a print job to print... This is a network printer with an external HP JetDirect (Model #J7942A) box and the slow printing occurs with all Snow Leopard machines. Firmware for both the Printer and the JetDirect box are at the latest versions...
I did notice that Apple's kb article indicates that the latest print driver for this printer is 1.0.2, but my driver indicates 1.0.1... Is the kb article incorrect? Any ideas why I'm not getting the 1.0.2 driver? Suggestions?

I've got the same problem with a Color Laserjet 3550 + JetDirect en3700.
For security reasons, I disabled SNMP v1/v2 on JetDirect. Everythings works fine on Leopard.
I got this problem after upgrading to Snow Leopard (ver. 10.6.2 with HP printer driver 1.0.1).
Looking at network traffic with Wireshark, I've noticed some timeout on SNMP v2 packet directed to the printer.
I've enabled SNMP v1+v2 on JetDirect and now everithings works fine, but security problems related to unsecure SNMP version are now open.
I've upgraded HP printer driver, but I can't find driver version 1.0.2, as mentioned in http://support.apple.com/kb/HT3669#HP.
Any suggestion?

Why is my 2006 iMac so slow now with Snow Leopard 10.6.8?

Hello,
I bought and installed Snow Leopard on my 2006 iMac so that i could use my new Lacie Minimus Drives for backup using Time Machine.
Since my install though the computer is slow and everything seems to take a long time to do. For instance, when i select one of the shortcuts in my bookmark bar i put the mouse icon over it and it takes 5 seconds for it to go dark grey so i can select it.
It's like it has a time delay on everything now. Everything is sooooo slow.
Also before i updated the OS there was this sound coming off the computer like it was doing something in the background, a sort of rustling/crinkling noise from the drive i think. When it makes this sound the computer will slow down and display that little spinning disc icon until the sound went away and then it would speed up again. This was another reason i wanted to wipe my drive and update my software. That sound is almost constant now.
I wanted to wipe my entire hard drive and install the Snow Leopard on a fresh new system. I usually do this once a year to get rid of any unwanted junk on my computer but i never realised that the Snow Leopard disc doesn't give you the option of 'Erase and Install'.
So, do i need to install Tiger with the 'Erase and Install' option, creating a fresh system, then install Snow Leopard and update it?
Also would installing new RAM improve my mac's performance? (MichelPM, thanks for your suggestion)
There's one on ebay made by Sandisk for sale at £30. It's 2GB and seems like the best option. It's listed below.
I have 1GB on board now so that would make it 3GB.
Would doing this get rid of these unwanted and very annoying sounds and time delays?
If i have to hear that rustling or see that little coloured disc for much longer i am going to lose it.
Thanks for you time.
http://www.ebay.co.uk/itm/2GB-Ram-Memory-Apple-iMac-2-16GHz-Intel-Core-2-Duo-iMa c-2-4GHz-Intel-Core-2-Duo?item=260992423037&cmd=ViewItem&_trksid=p5197.m7&_trkpa rms=algo%3DLVI%26itu%3DUCI%26otn%3D5%26po%3DLVI%26ps%3D63%26clkid%3D899659199115 7919118#ht_4483wt_1165

Hello,
Thanks for the help everyone.
First, i have all my data/files backed up on my older Lacie drives. New ones are still in their boxes.
Second, the noise with the disc. It's not a clicking sound. It's more like the drive is struggling to do something.
It's not continuous, It happens when opening up itunes or iphoto or another app. Or when i try to open up a page on Safari, the page will start to load, the noise will start and either the noise stops and the page loads or the page stalls and the sound continues and then i just hit reload or quit Safari depending on how annoyed i am at the time! It did do this before i updated to SL but it seems to be more and more now!
If i have Safari, iPhoto and Mail open all at once, it's like a battle over what get's done with the sound creaking away and the spinning icon all over the place.
How do i check my drive using Disk Utility? Do i 'verify' it? I have done it before but it was a long time ago.
I never did a clean install. I just put in SL and let it update, then i updated the software to 10.6.8.
I will do that when i get the new RAM however just to start afresh.
I have bought a 2GB Crucial RAM memory (Thanks RadiationMac) but do i need to buy another one now?
Also how would spotlight make noise?
Thank you. These forums are invaluable.

File sharing requires Internet in Snow Leopard?

I have two Snow Leopard Macs (10.6.5) and One Tiger (10.4.11) Mac all connected by cable to a router, each with a static IP address. When I have the Internet connection plugged into the WAN port of my router and modem turned on, file sharing works fine from any Mac to any other.
But if I have the Internet turned off and start up the computers, I cannot connect to a Snow Leopard machine to access the hard drive from either a Tiger machine or the other Snow Leopard machine. When I choose connect to Server in finder, and put in the IP address of a Snow Leopard Mac, it just times out, like that Mac don't exist on the network. I remain able to connect to the Tiger machine to access its hard drive via file sharing.
Why does Snow Leopard seem to need an Internet connection in order to be reached for file sharing on the LAN?
Thanks in advance.

I finally got to the bottom of the file sharing issue. I had the Snow leopard machines' network preference setting "Configure IPv4" set to "Manually". I had entered the IP address, router, subnet, and DNS server for each machine. DNS server was set to be the router, as I have my preferred DNS servers configured in the router. If I change Configure IPv4 to "Using DHCP with Manual Address" and remove the DNS server from Network preferences, causing it to be obtained from the router, this fixed the issue. (The DNS server still shows as the router's address, but it is now supplied by DHCP.)
I am still curious why configuring both the IP address and DNS manually causes the issue, while using DHCP for the DNS with fixed IP address fixes it.

No internet using Snow Leopard

I am unable to connect to internet using Ethernet or since installing Snow Leopard. I have checked with my service provider and they say it should be working fine. I have tried using Airport Express thorugh ASDL and Ethernet as well and this doesn't work. Any help will appreciated.
Lesley-Anne

Hi
So what happens if you plug a ethernet cable between your mac and adsl router , check in System Preferences / Network and make sure its set to Ethernet , once you plugged it in you should have a green light.

Jdeveloper very slow on OSX Snow Leopard

Hi:
I've installed jdev on ubuntu, windows and on osx snow leopard... the slowest one is the mac... very resource demanding compared to ubuntu for instance... and jdev runs faster on a virtual windows machine (virtualbox) under osx than in the osx itself... on ubuntu jdev run really slick... is this normal to be slow on osx ?
regards
Ricardo

I really don't understand why you're surprised. The idea that software makers somehow cripple existing apps to make users upgrade is common. It's also silly.
Let me give you a simple example. Today I paid €900 to repair the clutch on a Renault Espace that has 36k on the clock. Should I suppose this is a plan by Renault to get me to buy a new car? If it is, it's a remarkably stupid plan, because I can pretty much guarantee you that then next car I buy will not be a Renault. So too with Software. If you really think that Apple are trying to trick you or force you to upgrade, wouldn't you be stupid to do that? Wouldn't a sensible person instead by software by some other maker, rather than the one you think is cheating you? In fact, you'd really have to be very stupid to continue to use the software of a company that you believe is cheating you.
So, assuming you're not a stupid person, and assuming Apple are also not stupid, how would it make sense for Apple to trick you into upgrading?
Plus, of course, the fact that I ran 08 on 10.6 with no issues and so do most people.
And, you know, I am quite familiar with this forum, and yes I see the reports of performance issue. Of course, I actually read the posts and learn that there are many possible reasons for the issue. It's a symptom with several possible causes.
Have you tried creating a library in a new user account? What's the performance like on that?

Getting Disconected From Internet After Snow Leopard Upgrade - Solved

I know there are many ideas on this site about this topic but i just want to share mine. I stared having problems with my internet connection after I have upgraded to Snow Leopard. I tried few suggestions from this site and from the web but nothing worked for me. I decided to backup everything and do a clean install of SL.
After I did clean install I started to re-install all my applications, my internet connection was working fine at that time until I installed Skype. As soon as Skype connects to the internet I’m back to the old problem where my internet connection would drop every few minutes. As soon as I removed Skype everything was back to normal no more dropped connections.
Hope this helps someone with the same problem

It's not Skype.....it's Growl - part of that package...

Slow Internet Speed after Leopard

I'm having a funny problem since the installation of Leopard and that is very slow internet browsing speed. But its not as simple as it sounds. I have another Windows PC on the same network; when its on mac internet speed is slow, when Windows PC is off the Mac internet speed if fast and normal.
I'm not alone in this problem. I read similar problems on Apple Gazette after installing Leopard. Any suggestions?

http://discussions.apple.com/message.jspa?messageID=6039643#6039643
Had to search for it. I'm having the same problem as you see by my post in this forum. I hope this works for me. I also happen to be in South Carolina. Small world.

Why is mountain lion so slow compared to snow leopard?

Just installed Mountain Lion from Snow Leopard (skipped Lion).   I like the features of Mountain Lion but it is incredibly slow in overal start-up and general system responsiveness compared to Snow Leopard.
Running iMac and Macbook Pro and both are the same in really slow performance.

OK, been a busy week but I've installed RAM.
Had iMac 2007 model (iMac7,1) with 2GB of RAM (two 1GB modules).   Upgraded recently to 6GB of RAM (one 2GB and one 4GB module), yes, I know this is above the original specs of 4GB, but this model does indeed support 6GB with Snow Leopard or newer.   This now works fine under Mountain Lion with no spinning multi-colored ball.   With a couple of applications like Safari and Mail open, it has (using Activity Monitor) just under 2GB free memory.   Page Outs are now a very small (close to zero) fraction of Page Ins.   So, it works well.     If you are not upgrading memory then stick to Snow Leopard as it is a much lower memory footprint.
Had Macbook Pro 2008 model (MacBookPro5,1) with 4GB of RAM (two 2GB modules).   This wasn't performing as bad as the iMac with Mountain Lion but was still slow.   Anyway, upgraded to 8GB of RAM (two 4GB modules).   This is also now working fine with no major issues observed.
If running VMWare fusion, then a lot of the memory will be used up.   The free memory is very slim on on an iMac when running VMware Fusion with MS Win XP (ugh!), which I only do for a couple of scientific antenna analysis programs that I like to use that just aren't available on the Mac, but it is workable. Occasional memory address messages appear from the guest OS but othrwise fine.
So, in summary, if you have older machines (with low RAM) or have a multitude of apps open then Mountain Lion requires careful consideration as it needs just over 4GB when a couple of memory hungry apps open. Do anything exciting andmemory usage will increase causing tons of Page Ins compared to Page Outs and you'll be running in slow virtual memory.   So, for machines that you won't upgrade in RAM stick to Snow Leopard.   For modern Macs with 8GB, 16GB or more, then all will work well.
I still wish they could make the memory footprint leaner though.

Help: Slow Flash performance (Snow Leopard)

Dear Gurus,
Since upgrading to Snow Leopard, my MacBook Pro's performance playing FLASH videos is gone. Jerky, choppy videos are the norm now. Full screen mode is out of the question. YouTube is unwatchable...
I have tried every sugestion I have found on the net but the problem still persists. I did a clean install of the Snow Leopard and the problem is there.
How do I fix this???

Very late to this, but what is the capacity of your hard drive and how much space remains available on it? A too-full hard drive can cause deteriorating performance.
Also, have you maximized the RAM? How much RAM is installed?
Sometimes it can be your internet service provider at fault. What speed is your connection?
See, when somebody says, "I've tried every suggestion," unless you enumerate exactly what you have tried, it's hard for us to tell what you haven't tried (and what may actually help).

Slow wifi on Snow Leopard iMac

I have just moved into a new house and have a new isp. Everything is installed and working great but I'm haveing speed issues, only on my iMac. We are supplied with a 30mbps internet connection and most of the time get that. I have tested it on my MacBook and 30mbsp or there abouts is what I always acheive but I am struggeling to get internet at all on my iMac. The iMac is newer and I didn't have any problems before in my old home. I have tested the speeds with the iMac and MacBook placed next too each other and generally I only get 1mbps on the iMac and 30mbps on the MacBook. What could be causeing this and what could I do the fix the issue?

A Robinson wrote:
Spoken to a few other people on the road and pretty much everyone has Virgin Media's 'Super Hub' or what ever it is called and they're all having the same issues.
Andy,
I've heard (read) on other discussions here that people using that Virgin Hub report issues with Snow Leopard and Lion.
Could you eventually check if the Virgin unit provide a own network name e.g. "home" or "workgroup", please?
If the settings of the Virgin contain such a configuration, you should change that (if possible) to "local" to match your Mac's settings.
Cheers - Lupunus
PS ... just read ...
Eventually switch to 802.11n only if you hav no iPhone connected.-> http://help.virginmedia.com/system/selfservice.controller?CMD=VIEW_ARTICLE&ARTIC LE_ID=345031&CURRENT_CMD=SEARCH&CONFIGURATION=1002&PARTITION_ID=1&USERTYPE=1&LAN GUAGE=en&COUNTY=us&VM_CUSTOMER_TYPE=
and check that -> http://help.virginmedia.com/system/selfservice.controller?CMD=VIEW_ARTICLE&ARTIC LE_ID=245776&CURRENT_CMD=SEARCH&CONFIGURATION=1002&PARTITION_ID=1&USERTYPE=1&LAN GUAGE=en&COUNTY=us&VM_CUSTOMER_TYPE=
Message was edited by: lupunus

Iphoto very slow since upgrade Snow Leopard

Hello
i aprreciate your help, here.
Since we've upgraded our MacBook to Snow Leopard, iphoto '09 is very very slow. it takes up to 45 sec to go from one photo to another if I use the adjustement tools or crop.
What do we do?
Thank you

I really don't understand why you're surprised. The idea that software makers somehow cripple existing apps to make users upgrade is common. It's also silly.
Let me give you a simple example. Today I paid €900 to repair the clutch on a Renault Espace that has 36k on the clock. Should I suppose this is a plan by Renault to get me to buy a new car? If it is, it's a remarkably stupid plan, because I can pretty much guarantee you that then next car I buy will not be a Renault. So too with Software. If you really think that Apple are trying to trick you or force you to upgrade, wouldn't you be stupid to do that? Wouldn't a sensible person instead by software by some other maker, rather than the one you think is cheating you? In fact, you'd really have to be very stupid to continue to use the software of a company that you believe is cheating you.
So, assuming you're not a stupid person, and assuming Apple are also not stupid, how would it make sense for Apple to trick you into upgrading?
Plus, of course, the fact that I ran 08 on 10.6 with no issues and so do most people.
And, you know, I am quite familiar with this forum, and yes I see the reports of performance issue. Of course, I actually read the posts and learn that there are many possible reasons for the issue. It's a symptom with several possible causes.
Have you tried creating a library in a new user account? What's the performance like on that?

Slow Internet in Snow Leopard 10.6.8

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