24" Imac Slow Internet ****

I am in the DFW area using Verizon Fios - I have a D-Link DIR-655 router and a 24" Imac running Mac OS X 10.5.1. I purchased the Apple Airport router thinking the problem with internet speed might be my router. This was not the case - every computer in the house was much slower using the Airport - so I returned it to my Apple store.
I have now switched off the bluetooth and airport on my Mac - it is hooked straight into the router and every day at about 6:00 it slows down to turtle speed while my other 2 laptops that are wireless in the house and much older - are lightening fast.
I have called Verizon and had them out - they say there are not enough people on Fios to create any traffic problems at certain times of the day - which I believe being that the Apple Imac is the only computer with the problem.
I have downloaded Firefox and have the exact same problem.
I called Apple Support on one of my days off work - and spent 2.5 hours on the phone with them - they suggested reinstalling the entire operating system - I haven't done this yet - I really DO NOT think it is necessary or that it will help. They were not able to offer any solutions.
There has got to be some solution for this - my speed checks out very fast during this time - T2 speed for download and upload - I'm ready to throw this apple out the window.

I think the DNS servers handed out by Verizon's FiOS are overloaded.
I've had great success using 208.67.222.222 and 208.67.220.220 instead. You can set this in the System Preferences->Network preference pane->Built-In Ethernet->"DNS Server:" field.

Similar Messages

I Fixed my iMac slow internet connection

I will share with you how I fixed my iMac slow internet connection and frequently lost connection. At first, I thought it was the Airport but then it wasn't the case. I also had a Dell laptop in the same basement and it was running as fast as I expected. Here are the steps:
1/ Open Airport link on the top right window > Open Network Preferences
2/
Click + to create new Network Name and Security, I chose WPA personal - less security than the WPA2- that is why it runs faster.
3/ Go mack to step 1 and select your new network name > Apply.
May iMac is now connecting to internet as fast as I would expected.
Good luck

My iMac internet connection is not faster but as fast as it used to be. I was using WPA2 and it was really good for a year and then I got disconnected or very slow. So I created the new network bearing the same old name but use WPA and did not delete the old one, some how everything is back to normal.

I5 iMac slow internet after sleep

When waking from sleep my iMac has incredibly slow internet until I reboot it. Is this a known issue? If so, how do I fix it?

Hello,
See if the Disk is issuing any S.M.A.R.T errors in Disk Utility...
http://support.apple.com/kb/PH7029
Open Activity Monitor in Applications>Utilities, select All Processes & sort on CPU%, any indications there?
How much RAM & free Disk space do you have also, click on the Memory & Disk Usage Tabs.
Open Console in Utilities & see if there are any clues or repeating messages when this happens.
In the Memory tab of Activity Monitor, are there a lot of Pageouts?
Any external drives connected?
Have Console in Applications>Utilities open & see if there are any clues or repeating messages when this happens.

Imac slowing down entire network internet

just hooked up a 2009 imac 21.5 intel to my home net work. now evry computer in the house nas a super slow internet connection including the imac when i disconnect the imac evything is fine i have adsl connection the app on my iphone is showing between 12-15 without imac and barely 1 with it (download speed)
Even if i hard wire imac to modem same problem
HELP!!!!

No, OK lets check one more thing on the router. First routers have multiple channels, however most people NEVER change the channel their router is on. If you live in an area where there are lots of WI-FI networks that means you and neighbors could be competing for the same channel. You can download an app called iStumbler from macupdate.com and it will scan your neighborhood to see what channel you and your neighbors are on. If you find you are on the same channel as your neighbors (usually channels 5 or 6) then you can change the channel on your router. Again you'd have to call Verizon to get instructions.
After that change and if you still have the problem the next thing to do is change the DNS settings. This is easy to do and causes no harm. For instructions click DNS Settings Update.

Slow internet speeds on iMac running 10.10.3

Hey folks,
Hoping you can help me!
I have a late 2012 21.5" iMac running 10.10.3 and currently I've been getting very slow internet.
I've done some troubleshooting:
I've taken it to the Genius Bar and the airport card is fine.
I've reset dhcp lease which used to work but now no longer does.
Currently, my internet only gets normal speeds (about 100 Mbps down) when I delete my system config folder. Even after deleting it, however, it's only fine for a short period of time (usually a few hours) before it goes back to crawling speeds (usually the speed test ping test fails).
It's definitely not the hardware of the machine because it's picking up the wifi, it's not the router because the speeds are fine on my other devices and fine when I delete the system config folder, so I know it's software related. The issue does persist in a guest user or known good account so I know it's not user repeated.
I wanted to see if anyone else has any ideas to resolve the issue in the OS' current state prior to me just doing an erase and install.

Please read this whole message before doing anything.
This procedure is a diagnostic test. It’s unlikely to solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
The purpose of the test is to determine whether the problem is caused by third-party software that loads automatically at startup or login, by a peripheral device, by a font conflict, or by corruption of the file system or of certain system caches.
Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards, if applicable. Start up in safe mode and log in to the account with the problem. You must hold down the shift key twice: once when you turn on the computer, and again when you log in.
Note: If FileVault is enabled in OS X 10.9 or earlier, or if a firmware password is set, or if the startup volume is a software RAID, you can’t do this. Ask for further instructions.
Safe mode is much slower to start up and run than normal, with limited graphics performance, and some things won’t work at all, including sound output and Wi-Fi on certain models. The next normal startup may also be somewhat slow.
The login screen appears even if you usually login automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
Test while in safe mode. Same problem?
After testing, restart as usual (not in safe mode) and verify that you still have the problem. Post the results of the test.

Slow internet problem on my iMac solved by installing Google Chrome browser

Slow internet problem on my iMac solved by installing Google Chrome. My daughter came with her macbook pro loaded with OSX 10.6.8 but running Chrome and she could open all my problem websites instantly. So fault was in Safari. Thanks for all your help. My original post has disappeared

Original post is at:
All of my pre 2012 macs extremely slow to load web pages but my son's 2014 mac and my iphone and ipad 2 load same sites instantly

Slow internet connection via AirPort on MacBook running 10.5.7

The internet connection via AirPort on my MacBook is frustratingly slow, and I have no idea why.
I have an AirPort Extreme connected to a Virgin Media cable modem, a new iMac and a two year-old MacBook, both running 10.5.7. No problems at all with the wireless connection on the iMac - I get the full near-10Mbps download speed I'm paying for, despite the fact it's at the other end of the house. Not so on the MacBook, where I get barely 2Mb, even if I'm sat next to the router.
I've had other AirPort problems since the 10.5.6 update - notably one common to a lot of people on here, it seems, of the AirPort dropping the wireless connection every 2 mins. This was only 'fixed' by the fairly drastic workaround of essentially abandoning my user account and connecting via a different one.
For the slow internet problem, I've tried resetting the PRAM, turning off my cordless landline phone, changing the wireless channel - to no avail. I can't test the wired connection as my MacBook doesn't recognise my Ethernet port, it would seem, and hasn't for a long time.
Can anyone help? Thanks in advance.

For the slow internet problem, I've tried resetting the PRAM, turning off my cordless landline phone, changing the wireless channel - to no avail. I can't test the wired connection as my MacBook doesn't recognise my Ethernet port, it would seem, and hasn't for a long time.
I assume that you meant NVRAM as PRAM is not used with Intel-based Macs. Regardless, network settings are not stored here and resetting it won't really help. The fact that your MacBook is not recognizing the built-in Ethernet port is telling me that may have an issue with the system board ... that may be showing up as poor performance with the AirPort as well. I suggest that you take your MacBook in to your local Apple Store to have them take a look.

Slow internet connection via AirPort on MacBook under 10.5.7

The internet connection via AirPort on my MacBook is frustratingly slow, and I have no idea why.
I have an AirPort Extreme connected to a Virgin Media cable modem, a new iMac and a two year-old MacBook, both running 10.5.7. No problems at all with the wireless connection on the iMac - I get the full near-10Mbps download speed I'm paying for, despite the fact it's at the other end of the house. Not so on the MacBook, where I get barely 2Mb, even if I'm sat next to the router.
I've had other AirPort problems since the 10.5.6 update - notably one common to a lot of people on here, it seems, of the AirPort dropping the wireless connection every 2 mins. This was only 'fixed' by the fairly drastic workaround of essentially abandoning my user account and connecting via a different one.
For the slow internet problem, I've tried resetting the PRAM, turning off my cordless landline phone, changing the wireless channel - to no avail. I can't test the wired connection as my MacBook doesn't recognise my Ethernet port, it would seem, and hasn't for a long time.
Can anyone help? Thanks in advance.

help...same here (mostly)
eight core macpro on the same wireless network (10 feet from extreme base station) as my macbook pro (2008 top of the line)
everything updated. the macpro is just fine with the internet, the macbook pro is horribly slow.
tried downgrading firmware on the airport...no difference.
help!!
Message was edited by: leino88
Message was edited by: leino88

IMac slows down wifi/LAN cable connection

Hello,
I came across a quiet unique and annoying problem, that I have not seen being discussed so far.
I spend the last 3 weeks trying to solve my internet/wifi connection following all kinds of posts here.
Problem: Wifi/Lan internet connection is slow (less than 0.8mbit/s)
Problem only appears when I login with an iMac via wifi OR lag cable
iMac, 2011 27`` Mac OS 10.7.5
Background:
I have a 20mbit/s internet connection with my provider. works fine on iPad, iPhone, appleTV HTC one mini, etc… BUT as soon, as I login with my iMac, the internet connection slows down to less than 1 mbit/s
I have tried following solutions:
- live box (router) was exchanged and is brand new
- security settings on router changes (wpa2 etc)
- all channels on router tested from 1-13
- keychain saved passwords for Wifi and router deleted, PRAM reset
- renewed lease of connected devices (no IP conflict)
- shut down wifi on iMac - connection with all devices great, as soon as i switch wifi on, all devices lose their high speed connection and go down to less than 1mbit/s
- connected iMac via LAN cable: same problem, all speed is lost
- iMac is not in the network - speed is great
- connected iMac via time capsule wifi, same problem. connected iMac via netgear extender, same problem
also, if I open network preferences and start the "assist me" app and run diagnostics, all dots are green except the ISP and server, bit most of the time they switch to green immediately, but connection is still slow.
Reception bar is on "3", so signal strength is no problem, and I´d like to emphasize that this is also happening on LAN cable. and again, if the iMac is disconnected from wifi AND / OR LAN, all other devices work fine.
Would love to hear your thoughts!
Thanks!

Although I have been on Mac OS for a while now, I have never had to troubleshoot faulty network in the mac itself.
OSX does apparently have a safe mode boot..
OS X: What is Safe Boot, Safe Mode?
Try that.. as that gives you the same thing as windows with all the extras left out, so you get a basic operating system only and you can see if the problem still exists.. if it does.. I would simply bite the bullet.. wipe the Mac.. reinstall the OS and then carefully reinstall your applications from original disks/downloads and move your operating files back .. but start a different user on the computer and copy back the min you need to get working again.
If the problem still happens even in safe mode boot then do a hardware test.. because it is possible something has actually failed at the hardware level.
Using Apple Hardware Test

Does itunes 10.1 resolve the slow internet issues of itunes 10?

Hi guys,
when I installed iTunes 10 I experienced extremly slow internet connections and after looking through the forums, decided as some other users to revert back to iTunes 9. This did resolve my problems.
Now I note that iTunes has moved to 10.1 and I was wondering whether people who have installed it have any issues with their internet connection. I have an iMac 2.67 Quad - intel with OSX 10.6.5.
I would not want to go through all this again, I have been quite disappointed by this issue and the lack of support to it so I'd rather save the trouble and keep my opinion of Apple from any further damage !

i was just forced to install 10.1 b/c 8.21 (BEST itunes version ever - super fast, never crashed, etc) which worked flawlessly finally told me i had to upgrade b/c i could no longer see the store - it just stopped working. it's VERY painful to use 10.1 now, esp the store. this thread covers the same topic:
http://discussions.apple.com/thread.jspa?messageID=12743989#12743989
seems like it's on both windows and mac.

Very Slow Internet Lion (This one is for the "Apple Network Team")

hello,
i'm joão from Portugal, Europe.
a couple of weekends ago i've updated three macs to Lion.
2009 MacMini, 2007 White Macbook, 2010 iMac 21".
problems? only with the iMac.
no connection drops but slow slow slow very slow internet. wired, speedtest marked 15Mbps download. wireless? 1Mbps, 0,3Mbps, 3Mbps, very unstable.
with Snow Leopard everything was ok.
tried every solution from every site and finally got it working flawlessly.
tried clean install instead of update.
tried new dns servers.
tried disabling ipv6.
tried remove wifi interface then add it again.
tried service order.
tried PRAM, NVRAM, SMC, you name it, reset.
tried removing preferences folder.
tried different browsers -> same symptoms.
tried disable/enable airport.
tried 10.7.1, 10.7.2, combo, delta.
tried router's firmware update.
tried putting the computer closer to the router.
tried resetting the router, factory defaults.
tried changing router's channel.
tried disabling router's firewall.
tried watch router's event log, nothing suspicious.
tried disabling router's wep password.
tried pinging a site for a couple of minutes, 2% packet loss.
tried hundreds of pages and forums...
during this attempts, macmini and macbook showed very good wireless internet speed.
iMac? slow, slow, slow, slow, slow, like seeing gmail's loading screen for more than one minute...
again and again speedtest 1Mbps, 0,3Mbps, 1Mbps, 1Mbps, 0,3Mbps, 3Mbps.
discovered the pingtest utility in the same site and iMac's ping was grade C, grade F, grade D, with big values...mac mini and macbook were alwas grade B, with low pings (imagine 25ms on them vs. 138ms on the iMac).
i was fed up with the situation, every week tried and failed. iMac's owner was wanting to get his Lion money back and stick to Snow Leopard again. imagine recent Windows switchers thinking they went back to the same situations....
but then i found this website. and then realised macbook and macmini's wi-fi were both powered by a broadcom chipset. iMac's was powered by an Atheros chipset! did what the guy says on that site (replaced Lion's Atheros kernel driver by the one on Slow Leopard), and now everything is perfect, like on Snow Leopard. very good speed.
what a relief. thank you sir.
hope it can help you.
hope it reachs apple's network developers...this is not good, you can't fail on something so simple and essential as decent wifi quality...

humm...
i've clean installed one macbook (late 2008?) and one mac mini (early 2009) both with broadcom adapters and both of them were ok, after the install.
so, speedtest and pingtest are websites (speedtest.net and pingtest.net), both test your internet connection with the help of a 'local' server. it's useful, for instance, if you want see if two different computers connected to the same router have the same connection quality.
so if you can connect to some routers nicely and you have problems with your router, to me, it seems like you have some problems with the connection between your computer and the router.
an old router might bring you problems (there are some advices on the internet to change router's channel and so...), i would recommend to see if motorola has some sort of firmware update to your router. if you don't have complex router configurations, you might try to reset to factory defaults (search the manual). that, once, fixed a problem with a smc router and two macbooks (one, older, could connect easily, the other wouldn't connect to the router).
if that atheros driver trick, resolved your issue, that's strange
make sure broadcom isn't your ethernet adapter and not your wireless adapter
did you resetted your pram and smc? do you have Mac OS 10.7.2?
i hope you can figure that out.

Slow internet on G5 help!

I am experiencing REAL slow internet problems with my G5 below are the specs. I
turned off IPn6 (or something like that) to see if it would help. didn't help that much.
1.6 Ghz PowerPC G5
2 GB DDR SDRAM
Mac OS X version 10.5.7
Model Name: iMac G5
Model Identifier: PowerMac8,1
Processor Name: PowerPC G5 (3.0)
Processor Speed: 1.6 GHz
Number Of CPUs: 1
L2 Cache (per CPU): 512 KB
Memory: 2 GB
Bus Speed: 533 MHz
Boot ROM Version: 5.2.2f4
GeForce FX 5200:
Chipset Model: GeForce FX 5200
Type: Display
Bus: AGP
Slot: AGP
VRAM (Total): 64 MB
Vendor: NVIDIA (0x10de)
Device ID: 0x0329
Revision ID: 0x00b1
ROM Revision: 2103
Displays:
iMac:
Resolution: 1440 x 900
Depth: 32-Bit Color
Core Image: Hardware Accelerated
Main Display: Yes
Mirror: Off
Online: Yes
Quartz Extreme: Supported
Built-In: Yes
AirPort Card Information:
Wireless Card Type: AirPort Extreme (0x14E4, 0x4E)
Wireless Card Locale: USA
Wireless Card Firmware Version: Broadcom BCM43xx 1.0 (4.170.25.8)
Current Wireless Network: 0407
Wireless Channel: 11
not sure if that helps. but any ideas? because honestly it was a gift and I'm thinking of replacing it with a faster pc. It was a gift- and they offered this or a PC... and honestly- I like the mac (except this weird keyboard) but hate the slowness of internet. applications seem VERY fast. it's just the f-ing wireless. ugh. I have a wireless N server (belkin) which I now have only sending out G to help.
any thoughts appreciated. so sorry to bother you. hope you are well!
MAC Download
http://www.speedtest.net/result/478128069.png
download 1.86
upload 48
10ms ping
PC (that is over 5 years old with a 1.3 gig processer and wireless G)
dowload 7.60 (wow that's FIERCELY different)
upload .49 (wow upload is slow on both.)
14ms ping
thoughts? please help!
p.s. is my airport card a wireless G or B?

There's no reason you should have slow connectivity with that Mac, but you haven't given any details about how your internet connection is set up, what you're using for DNS, etc. There are plenty of hints for how to fix your Internet connection in Leopard in these forums. You might start by manually entering an openDNS server to replace the one you're using and see if DNS resolution is the problem.

How to install Lion on Mac with slow internet connection.

My father's Mac mini has a slow internet connection. I always update it by taking the update packages that I download on my iMac to his machine. Will I be able to do that with 10.7 (Lion) when it is purchased/downloaded from the Mac App Store?

It seems that Apple's license terms will allow that across Macs that share the same App Store ID, but I doubt that's the case with you and your father. Physically the update package for Lion could be moved, but the licensing issues will have to be worked out. You're not the only person who's concerned with the issue of how to download a 4 GB file for Lion.

Extremely slow Internet over Airport, good speed with Ethernet

I've been using an airport extreme router (802.11n) for a while and recently I've noticed an incredible slow Internet over wifi. When I do a speed test it shows numbers like 200 kbps and I have a 10 mbps cable Internet connection. When I connect the ethernet from the modem it's perfect speed. Obviously Airport is slowing down my Internet connection. I tried resetting the Airport by pressing the reset button at the back, and it worked perfectly for a while. But after a few days it got back to slow Internet. Anybody have any idea?

I don't know if this will help anyone else, but I came across some changes (purely by experimentation) that may help. I hope so, at least...
I opened the Airport Utility and I swapped channels. The default is channel 6, but every other WiFi router defaults to this channel, too. I changed my Airport Extreme to use channel 3 (as well as my Airport Express), and now things are back to what I would have expected for an 802.11g connection.
I will offer the suggestion that those of you with the same Internet slow-down observed on their iMac G5's try swapping channels. If you have an expanded WiFi home network vis-a-vis an Airport Express, be sure to update it first before you update your Airport Extreme.
Best wishes and good luck!
TRB

Did a clean install but still find imac slows significantly as the day goes on. first projects go pretty well. later

did a clean install but still find the imac slows as the hours pass. using photoshop cs5 and lightroom3,
working w/some large files, but previously-like months ago, there was not this slowing problem. even
the internet slows later in the day. and small moves in a program start to take forever. anyone experience this
issue? or have any thoughts on it? thank you

How much free space do you have on your drive?
From the sounds of your problem is sounds like you are approaching a full disk.
Allan

24" Imac Slow Internet ****

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