Why Internet is so slow on iMac?

I'm using wifi from bright house in Tampa, FL which is not the greatest, however my iPad and iPhone work much faster using the wifi at home. I have even entered the same web address in all of the devices and the iMac is always the slowest. What do I need to do?

One thing you can change is the DNS settings, chances are your limitation is the DNS settings the ISP uses. Please click DNS Settings Update for instructions.

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Internet connection suddenly slow for iMac but OK for iPad and iPod

A few days ago the WIFI internet connection on my iMac suddenly became so slow as to be unusable. However my iPad and iPod Touch on the same network still connect as normal. I have tried everything I can think of together with some ideas posted on various forums, including the following:
Rebooting and reformating the router - a Netgear DG834G v2
Connecting the iMac to the router via ethernet cable
Trying different channels on the wireless network
Altering the physical position of the router
Using Disk Utility to repair the hard drive on the iMac
Using Disk Utility to repair permissions on the iMac
Disconnecting the two external hard drives (one used for Time Machine) in case they were affecting performance
Running anti-virus software on the iMac and deleting any infected files
Disabling the anti-virus software
Deleting the network location on iMac and creating a new one
Trying different DNS servers including 208.67.222.222 / 208.67.220.220 and 8.8.8.8 / 8.8.4.4
Removing Skype from the iMac - the application my daughter was using when the connection suddenly became slow
Trying to browse in both Safari and Firefox
Resetting caches on the iMac
Rebooting the iMac after trying all the above
Swearing at the computer
Pulling my hair out!
None of these have made any difference. Sometimes when I reboot the iMac the first page I browse to loads reasonably quickly but then it immediately slows to a crawl again. The iPad is still connecting perfectly so I don't think it's an issue with the router.
The iMac is a 24-inch 2.8 GHz Intel Core 2 Duo with 4 GB 800 MHz DDR2 SDRAM
Running OS X 10.7.5
The hard drive has a capacity of 320 GB with 62 GB free.
I'm at my wits' end trying to sort this out and don't know what else to try.
PLEASE HELP!

Hi BDAqua,
In Disk Utility the disk is listed as S.M.A.R.T. Verified and comes up with no errors when checked.
Activity Monitor: with no other applications open Activity Monitor itself is using the greatest percentage of the CPU at approx 3%. Opening Safari and trying to load a web page initially used about 20% but immediately dropped back to less than 1%.
Whilst trying to open the web page I noticed on the Network tab that the Data received/sec is generally between 0-20 bytes/sec, sometimes jumps to a couple of hundred bytes/sec and very occasionally peaks at about 1,000 bytes/sec. Data sent/sec is generally mirroring data received.
Free RAM is at 2.5 GB and free disk space is just short of 63 GB (out of a total capacity of 320GB).
In Console I am getting the following messages:
usbmuxd: AMDeviceConnect (thread 0x100781000): could not connect to lockdown port (62078) on device 6 - d81bda1a752c658f30b839f53ca2fdb6a55f4816: 0xe8000084
usbmuxd: _AMDevicePreflightWorker (thread 0x100781000): Pair worker could not connect to lockdownd on device 6: 0xe8000084
com.apple.usbmuxd: stopping
com.apple.usbmuxd: usbmuxd-296.4 on Dec 21 2012 at 16:11:14, running 64 bit
In the System Memory tab of Activity Monitor - Page outs : 0 bytes (0 bytes/sec)
Thanks for your help. It's really appreciated. By the way, it's taking me forever to type all this on my iPad!

My iMac keeps on diconnecting from my network and The internet is very slow on it too.

Hi
My iMac has been acting wierd for the past month. It has been disconnecting from the internet/network and also it has a very slow speed when using Safari or any other internet application (eg. Skype). Im not sure why this is happening. My iMac has Windows installed (100GB partioned) and yet the internet is fast on it than the Mac side. On other computers and mobiles the internet is very fast, and does not disconnect. I scanned my computer and it came up with nothing.
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If you connect to your router with with Wi-Fi, please try connecting with an Ethernet cable. Turn Wi-Fi off and test. Any difference?

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Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the main menu. Repair the Hard Drive and Permissions as follows.
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu.
Reinstall Lion/Mountain Lion: Select Reinstall Lion/Mountain Lion and click on the Continue button.
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If you feel that your Internet connection is slow then
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2)Clear all the cache files and history of the browsers,this may help in increasing the browsing speed.
3)Avoid using browsers which requires flash and Java scripts.And use the browsers like FireFox and Chrome.By using this browser you can increase the downloading speed ,because this browsers don't use and flash and Java script.After doing this check your internet speed in the site ScanmySpeed.com which may provides you the exact speed of your connection without using any java or any flash scripts.

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The internet is running slow on the computer....not opening as quickly and won't stream any media when I need to what could be slowing it down and is there a way to fix it? I haven't had the computer for that long.

In the Sustem/Network/Advanced/DNS preference pane check to see what DNS servers you're using. If it's not one of the two below delete those that are there and add both of the two below. See if that improves performance. Note what servers were there in case you want to go back to them.
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My internet was pretty fast, and now it's really slow, i don't know if it's because of my wifi or what. But i had downloaded lots of tv show videos and I am thinking that it's happened because of that. But i think if i do delete the videos for good, my internet would still stay the same. So i think it wont make a difference if i do delete it, should i or not? and what should i do about my internet??
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Why does Photoshop keep slowing down?

I've been using Adobe Photoshop CS5.1 for two years now, and for some reason it seems to have the problem of slowing down after using it for a while, so if I'm working on a project I have to keep closing it and reopening it to get it fast again. It's weird because it doesn't seem to matter how much stuff is on the canvas, it's just how much I've drawn and hit undo and erased or did anything, After like 5 minutes of straight work it just gets too slow for me to work in, like when I switch tools or change the color it takes a couple seconds to respond. So literally every couple minutes I have to restart Photoshop and open the same file.
What's really odd is that sometimes Photoshop will work perfectly fine and stay lightning fast for hours. Like, for the last couple of months it's been 100% fine, but since a few days ago it started to have this "slowing down" issue again. Every couple months it seems to decide to be perfectly fine or just really annoying. I didn't change anything in my computer.
It can't be my computers specs or my settings in Photoshop, but I will tell you all of that anyway.
OS - Windows 7 64-bit
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RAM - 12GB DDR3 @ 1333MHz

There is no malware scanner running, in fact I have tried closing out all other applications and unnecessary processes to help improve performance. No luck.
Also, my post actually wasn't quite finished, but my internet shut off on me last night and I guess that just automatically posted whatever I had done before then. What's even better is that the forums won't allow me to edit it. What great features!
Anyway, here's the FULL spec sheet of my computer...
OS - Windows 7 64-bit
CPU - Intel Core 2 Quad Q6600 @ 3.0GHz
RAM - 12GB DDR3 @ 1333MHz
GPU - NVIDIA GeForce GTS 450 1GB
Storage - 1x 128GB SSD (OS installed on), 1x 750GB HDD, 1x 160GB HDD
I have the 64-bit version of Photoshop CS5.1 Extended, installed on the SSD. Here's the settings I have in the preferences:
Memory Usage - 100%
Scratch Disks - All 3, SSD 1st, 750GB HDD 2nd, 160GB HDD 3rd
History States - 100
Cache Levels - 8
Cache Tile Size - 1028K
I have fiddled with these settings and restarted Photoshop countless times. In the end it's the same exact result: Photoshop slows down after a few minutes of work and I have to restart it. I have about 50GB free on the SSD, 150GB free on the 750GB, and about 140GB free on the 160GB.
I don't understand why it gets so slow even when my RAM usage only makes it up to about 45%. Why doesn't it just utilize ALL of the memory like I told it to?
I've tried setting cache to 1, 2, and 4, same result. Cache tile size to all the different settings, same result. History states to an extremely low level like 10, same result. I just don't understand why Photoshop is doing this, especially because it decides to speed up on its own every couple of months...

After upgrade to 10.6.8 Internet is much slower

Hello, after upgrading to Mac OS X 10.6.8, my Internet works much slower, with all my browsers (Safari, Firefox, Chrome). I downloaded and installed the combo, and I switched IPv6 to off; both didn't work. (I have a DNS server in my list. There is enough disk space left.) Suggestions are highly appreciated.
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Lion... Seems to be slowing my iMac Down? Tips and Tricks?

Hey everyone, this is my first post so go easy on me
I installed lion as soon as it came out. I'm really impressed so far, loving the new features (except my inverted mouse, that had to be changed pretty sharpish). My only problem is, is that it seems to have slowed my iMac down. I have seen in some posts that spotlight needs to do alot of indexing, but I generally leave my computer on for long periods so it should have finished that by now should it?? I seem to struggle with safari, however im just in the process of re-downloading and installing again.
My iMac is a 24 inch, 2.8 GHz Intel Core 2 Duo. My macbook air doesnt seem to have any problems so any idea why I would be struggling on the iMac??
Any tips, tricks or advise would be much appreciated.
Thanks!

Thats what I thought about spotlight. If Im leaving it on for long periods that should of been done and dusted ages ago. I know what u mean about the performance, some times it flies and does what I want, but the more windows I have open on sarfari and it seems like im asking for trouble!
I thought I would be able to re-download safari from here... http://www.apple.com/safari/download/
How ever u can only get 5.1 on the apple site and u need snowleopard for that. So that idea has gone out the window.
Hmmm not sure about the apps. However u can just re-download the ones u have already paid for can't u.
U had any joy?

Internet is painfully slow, across any app.

Hi everyone --
I've searched all of the forum topics I could find related to this, and none of the discussed solutions have helped me.
My internet is brutally slow, regardless of the app, including Safari, App Store, Skype, etc.
Another computer in the household has Windows and is running fine.
I have tried all of the reasonable attempts to fix this that I've read about, including:
Punching in new DNS codes in the Network area of System Preferences.
Deleted the cache, the browser history in Safari, and disabling browser plug ins.
I've uninstalled and reinstalled Flash player (as this is where the connection suffers the most, in trying to stream videos on BBC, YouTube, etc).
Going into my Library then moving and deleting the ".plist" for Safari.
In general, on websites or the App Store for example, what happens is -- basic text will pop up after about 3 or 4 seconds of hanging, then even the slightest bit of content, including thumbnails, take several seconds per image. Anything even slightly more intense on bandwidth, like a streaming video or Flash menu, takes forever to load, if not outright gives up on me and never loads.
My machine is on Snow Leopard, a white Macbook, OSX is currently 10.6.8, which I believe I've had for several months, but this problem is only a day or two old. If I recall correctly, I did install the latest Security Update -- whatever the new ones are circa Feb. 3rd, 2012 -- within a day or two BEFORE this problem started happening... I believe this may be the culprit but strange in that there was some time before this problem surfaced, or so it seemed.
Does anybody know what more I could do?
Thanks!

Coincidence or conspiracy?
Within minutes of posting this question, internet went back to regular speed. Just like that. I have NO idea why. I didn't do anything different after posting my question. Simply time passed. I must emphasize, it was NOT an ISP problem as other machines in the house worked fine all along. So I don't know if something "kicked in" or what, from all the changes I tried, but for now at least, it's working.
Any insight as to what happened here?

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I have a new touchsmart 300 that hasn't been in use for more than a day. i've updated windows and hp software. the internet is incredibly slow and i don't know why. another computer runs fine on the same internet connection. any suggestions? thanks!

tylerdurden8us wrote:
I have a new touchsmart 300 that hasn't been in use for more than a day. i've updated windows and hp software. the internet is incredibly slow and i don't know why. another computer runs fine on the same internet connection. any suggestions? thanks!
Try moving the computer closer to the router or plugging in an ethernet,
also try Updating and reinstalling the network driver.
Check for viruses too, MBAM Home Page
I have more HP devices than you'd expect.
1 HP TouchPad 32 GB with Android
2 HP Touchsmarts (310-1000z and IQ527)
2 HP Printers (J6480 and J5750)
1 Laptop (HP DV6253CL)
Have at least some experience in each of those devices, and i'll do my best to help you.
Kudos if I helped!

Since Mountain Lion Upgrade is my Internet connection very slow, Since Mountain Lion Upgrade is my Internet connection very slow

Why is Safari so slow after Mountain Lion upgrade?

I have a home Optimum wifi network with Boost connecting to an Airport, with a second Airport extending, and an Airport Express extending. I have a MacBook Pro, last year's model, two iMacs, a year old each, and an older iMac. (If necessary I can get all the models etc, but I just want to express the problem). The two new iMacs and MBP are running Mountain Lion. The older Lion.
Since upgrading to ML my connection speed both over the wifi and directly connecting to the router has dropped from 30-50 down and 5 up to between 1-4 down and 4 up. I have had the cable folks here to test lines. We've swapped out the modem with a new one. I bought a new netgear N600. Everything led to the same result.
Here's the odd part. When restarting the modem and plugging it directly into the powerbook, initial tests show 30-50 up and 5 down. But once you reconnect to wifi, lose speed, the re-connect directly to the modem the slowness persists directly connected to the modem.
So I start suspecting Mountain Lion. BUT the older iMac cannot be upgraded to Mountain and is still running Lion and has the same issue. The equipment is in the same place it's always been. We've added no electronics that would be interfering with signals.
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Why Internet is so slow on iMac?

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