IMac connection very slow via airport

I hope some of you on the forum can help me as I'm rather puzzled. My internet has always been running at a good speed ,20mbs real time 12-17mbs. Before christmas I experienced a dip in the speed. I thought it was the ISP and contacted them. It turn out that there was a fault in the area. That should naw have been fixed and running speed tests on my macbook pro's proved that correct. I'm now getting the full 20mbs. How ever the iMac is painstakingly slow on the network and when going on the internet. speedtest.net gives me a >1mbs on downloads and > .5mbs. My 17" macbook pro which is placed next to the iMac in the office upstairs is running full tilt 20mbs download and <2mbs upload. This is very frustrating as I can't understand why the difference can be so big. I've restarted router, modem, iMac. Reinstall of Snow Leopard (Clean) repaired permissions, HDD. Have i got something wrong with the airport, spyware/virus (don't see that being the case) If any one of you guys/girls has any idea's solution please let me know.
Tom

I think I'm having a similar problem. I have a late 2006 24-iMac C2D 2.4 and it is has very slow internet access. I understand that there is so many variables but I have another iMac (same model) and a late 2009 Macbook Pro and they have no problems. I've had the internet connection tested and it is working fine.
I can't figure out what the problem is.
Likewise, I've done the same things: reset airport, modem, moved computer, and reinstalled OSX.
I have no antivirus software.
Message was edited by: Pbtaco
Message was edited by: Pbtaco

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Thanks in advance for any help.
I have given up trying to get an answer to my Airport problem and NTL Virgin.
I now have my iMac connected to web via ethernet all okay for a week now so it can't be my connection that was the problem.
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To setup for Internet Sharing (Wired to Wireless):
Setup the Network
Internet Modem > (Ethernet cable) > \[Ethernet port] iMac > (wireless) > PowerBook
Enable Software Firewall - iMac
System Preferences > Security > Firewall
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Enable Internet Sharing - iMac
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AirPort Options...
o Network Name: <anything you want>
o Channel: Automatic
o Enable encryption (using WEP) (optional)
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Hi
My iMac is very slow after installing Yosemite. Can any one help? Here is my Etrecheck below
EtreCheck version: 2.1.5 (108)
Report generated 20 December 2014 9:38:19 pm AWST
Click the [Support] links for help with non-Apple products.
Click the [Details] links for more information about that line.
Click the [Adware] links for help removing adware.
Hardware Information: ℹ️
iMac (21.5-inch, Mid 2011) (Verified)
iMac - model: iMac12,1
1 2.8 GHz Intel Core i7 CPU: 4-core
4 GB RAM Upgradeable
BANK 0/DIMM0
2 GB DDR3 1333 MHz ok
BANK 1/DIMM0
2 GB DDR3 1333 MHz ok
BANK 0/DIMM1
empty empty empty empty
BANK 1/DIMM1
empty empty empty empty
Bluetooth: Old - Handoff/Airdrop2 not supported
Wireless: en1: 802.11 a/b/g/n
Video Information: ℹ️
AMD Radeon HD 6770M - VRAM: 512 MB
iMac 1920 x 1080
System Software: ℹ️
OS X 10.10.1 (14B25) - Uptime: 0:5:38
Disk Information: ℹ️
WDC WD1001FALS-403AA0 disk0 : (1 TB)
EFI (disk0s1) <not mounted> : 210 MB
Macintosh HD (disk0s2) / : 999.35 GB (680.79 GB free)
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
HL-DT-STDVDRW GA32N
USB Information: ℹ️
Apple Inc. FaceTime HD Camera (Built-in)
HP Photosmart 5520 series
Apple Inc. BRCM2046 Hub
Apple Inc. Bluetooth USB Host Controller
Apple Computer, Inc. IR Receiver
Apple Internal Memory Card Reader
Thunderbolt Information: ℹ️
Apple Inc. thunderbolt_bus
Gatekeeper: ℹ️
Mac App Store and identified developers
Kernel Extensions: ℹ️
/Applications/Splashtop Streamer.app
[not loaded] com.splashtop.driver.SRXDisplayCard (1.6 - SDK 10.7) [Support]
[not loaded] com.splashtop.driver.SRXFrameBufferConnector (1.6 - SDK 10.7) [Support]
/Library/Application Support/Avast/components/fileshield/unsigned
[loaded] com.avast.AvastFileShield (2.1.0 - SDK 10.9) [Support]
/Library/Application Support/Avast/components/proxy/unsigned
[loaded] com.avast.PacketForwarder (2.0 - SDK 10.9) [Support]
/System/Library/Extensions
[loaded] com.Cycling74.driver.Soundflower (1.6.6 - SDK 10.6) [Support]
Launch Agents: ℹ️
[loaded] com.avast.userinit.plist [Support]
[not loaded] com.splashtop.streamer-for-root.plist [Support]
[running] com.splashtop.streamer-for-user.plist [Support]
[running] com.teamviewer.teamviewer.plist [Support]
[running] com.teamviewer.teamviewer_desktop.plist [Support]
Launch Daemons: ℹ️
[loaded] com.adobe.fpsaud.plist [Support]
[loaded] com.avast.init.plist [Support]
[loaded] com.avast.uninstall.plist [Support]
[loaded] com.avast.update.plist [Support]
[not loaded] com.macpaw.CleanMyMac2.Agent.plist [Support]
[loaded] com.microsoft.office.licensing.helper.plist [Support]
[running] com.splashtop.streamer-daemon.plist [Support]
[loaded] com.splashtop.streamer-srioframebuffer.plist [Support]
[loaded] com.teamviewer.Helper.plist [Support]
[running] com.teamviewer.teamviewer_service.plist [Support]
User Launch Agents: ℹ️
[loaded] com.adobe.ARM.[...].plist [Support]
[invalid?] com.avast.home.userinit.plist [Support]
[not loaded] com.google.keystone.agent.plist [Support]
[loaded] com.macpaw.CleanMyMac2Helper.scheduledScan.plist [Support]
[loaded] com.macpaw.CleanMyMac2Helper.trashWatcher.plist [Support]
[running] com.spotify.webhelper.plist [Support]
User Login Items: ℹ️
AdobeResourceSynchronizer ApplicationHidden (/Applications/Adobe Reader.app/Contents/Support/AdobeResourceSynchronizer.app)
Dropbox Application (/Applications/Dropbox.app)
VLCStreamer Application (/Applications/VLCStreamer.app)
Internet Plug-ins: ℹ️
Flip4Mac WMV Plugin: Version: 3.0.0.126   - SDK 10.8 [Support]
FlashPlayer-10.6: Version: 16.0.0.235 - SDK 10.6 [Support]
Default Browser: Version: 600 - SDK 10.10
AdobePDFViewerNPAPI: Version: 10.1.13 [Support]
AdobePDFViewer: Version: 10.1.13 [Support]
Flash Player: Version: 16.0.0.235 - SDK 10.6 [Support]
QuickTime Plugin: Version: 7.7.3
SharePointBrowserPlugin: Version: 14.3.9 - SDK 10.6 [Support]
Silverlight: Version: 5.1.10411.0 - SDK 10.6 [Support]
JavaAppletPlugin: Version: 15.0.0 - SDK 10.10 Check version
Safari Extensions: ℹ️
wrc [Installed]
3rd Party Preference Panes: ℹ️
Flash Player [Support]
Flip4Mac WMV [Support]
Time Machine: ℹ️
Skip System Files: NO
Mobile backups: OFF
Auto backup: YES
Volumes being backed up:
Macintosh HD: Disk size: 999.35 GB Disk used: 318.55 GB
Destinations:
Data [Network]
Total size: 3.00 TB
Total number of backups: 84
Oldest backup: 2013-09-21 09:42:27 +0000
Last backup: 2014-12-20 11:26:14 +0000
Size of backup disk: Excellent
Backup size 3.00 TB > (Disk size 999.35 GB X 3)
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      3% com.apple.WebKit.WebContent
      1% WindowServer
      1% Safari
      1% TeamViewer_Service
      0% com.avast.daemon
Top Processes by Memory: ℹ️
219 MB com.apple.WebKit.WebContent
133 MB com.avast.daemon
90 MB ocspd
77 MB mds_stores
73 MB Dropbox
Virtual Memory Information: ℹ️
82 MB Free RAM
1.70 GB Active RAM
1.67 GB Inactive RAM
829 MB Wired RAM
2.20 GB Page-ins
111 KB Page-outs
Diagnostics Information: ℹ️
Dec 20, 2014, 09:35:40 PM /Library/Logs/DiagnosticReports/com.avast.daemon_2014-12-20-213540_[redacted].c pu_resource.diag [Details]
Dec 20, 2014, 09:33:21 PM Self test - passed
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Avast Un-install
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CleanMyMac - Uninstall
CleanMyMac2 Un-install
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EasyFind – Spotlight Replacement
Activity Monitor - Mavericks also Yosemite
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Performance Guide
Why is my computer slow
Why your Mac runs slower than it should
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My imac is very slow

My imac is very slow. I ran a program and this is what I got. Sorry I do not know what it means. Can someone please help me to speed up mu imac?
EtreCheck version: 1.9.11 (43) - report generated 8 June 2014 5:08:20 PM AEST
Hardware Information:
          iMac (24-inch, Early 2009)
          iMac - model: iMac9,1
          1 2.66 GHz Intel Core 2 Duo CPU: 2 cores
          4 GB RAM
Video Information:
          NVIDIA GeForce 9400 - VRAM: 256 MB
System Software:
          Mac OS X 10.7.5 (11G63) - Uptime: 0 days 0:12:9
Disk Information:
          WDC WD6400AAKS-40H2B0 disk0 : (640.14 GB)
                    disk0s1 (disk0s1) <not mounted>: 209.7 MB
                    Macintosh HD (disk0s2) / [Startup]: 632.99 GB (385.51 GB free)
                    Recovery HD (disk0s3) <not mounted>: 650 MB
                    BOOTCAMP (disk0s4) /Volumes/BOOTCAMP: 6.28 GB (6.27 GB free)
          OPTIARC DVD RW AD-5670SC
USB Information:
          Apple Inc. Built-in iSight
          Sony Storage Media 4.05 GB
                    MANAN'S USB (disk1s1) /Volumes/MANAN'S USB: 4.04 GB (3.57 GB free)
          Apple Computer, Inc. IR Receiver
          Microsoft Microsoft® Nano Transceiver v1.0
          Apple Inc. BRCM2046 Hub
                    Apple Inc. Bluetooth USB Host Controller
Kernel Extensions:
          [not loaded] com.elgato.driver.DontMatchAfaTech (1.1) Support
          [not loaded] com.elgato.driver.DontMatchCinergy450 (1.1) Support
          [not loaded] com.elgato.driver.DontMatchCinergyXS (1.1) Support
          [not loaded] com.elgato.driver.DontMatchEmpia (1.1) Support
          [not loaded] com.elgato.driver.DontMatchVoyager (1.1) Support
          [kext loaded] com.silex.driver.sxuptp (1.5.1) Support
          [not loaded] com.wire.USBEthernetController (1.0.5) Support
Startup Items:
          HP IO: Path: /Library/StartupItems/HP IO
Problem System Launch Daemons:
          [running] GSInGameService.plist Support
Problem System Launch Agents:
          [running] org.thebends.iphonedisk.mobile_fs_util.plist Support
Launch Daemons:
          [loaded] com.adobe.fpsaud.plist Support
          [invalid] com.Affinegy.InstaLANd.plist
          [loaded] com.microsoft.office.licensing.helper.plist Support
          [running] Jack.plist Support
Launch Agents:
          [running] com.Affinegy.InstaLANa.plist Support
          [running] com.conduit.loader.agent.plist Support
          [loaded] com.hp.help.tocgenerator.plist Support
User Launch Agents:
          [failed] com.apple.CSConfigDotMacCert-[...]@me.com-SharedServices.Agent.plist
          [running] com.google.Chrome.framework.plist Support
          [loaded] com.google.keystone.agent.plist Support
          [running] com.spotify.webhelper.plist Support
User Login Items:
          iTunesHelper
          default.jpg
          Belkin Router Monitor
          EyeTV Helper
          EyeTV
          uTorrent
          Spotify
          Genieo
          RealPlayer Downloader Agent
          HP Product Research
          HP Scheduler
Internet Plug-ins:
          DirectorShockwave: Version: 12.1.2r152 - SDK 10.6 Support
          Unity Web Player: Version: UnityPlayer version 4.3.7f1 - SDK 10.6 Support
          OfficeLiveBrowserPlugin: Version: 12.2.8 Support
          VLC Plugin: Version: 1.0.5 Support
          Silverlight: Version: 4.0.60531.0 Support
          FlashPlayer-10.6: Version: 13.0.0.214 - SDK 10.6 Support
          QuickTime Plugin: Version: 7.7.1
          Flash Player: Version: 13.0.0.214 - SDK 10.6 Support
          googletalkbrowserplugin: Version: 1.9.2.1599 Support
          npgtpo3dautoplugin: Version: 0.1.43.4 Support
          SharePointBrowserPlugin: Version: 14.3.6 - SDK 10.6 Support
          iPhotoPhotocast: Version: 7.0
          JavaAppletPlugin: Version: 14.9.0 - SDK 10.7 Check version
Safari Extensions:
          Ebay Shopping Assistant: Version: 1.1
          Amazon Shopping Assistant: Version: 1.1
          Omnibar: Version: 1.2
          Searchme: Version: 1.3
          Slick Savings: Version: 2.0
Audio Plug-ins:
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iTunes Plug-ins:
          Quartz Composer Visualizer: Version: 1.3 - SDK 10.7
User Internet Plug-ins:
          RealPlayer Plugin: Version: (null) Support
          Google Earth Web Plug-in: Version: 7.1 Support
3rd Party Preference Panes:
          Flash Player Support
          Growl Support
          MacFUSE Support
Time Machine:
          Time Machine not configured!
Top Processes by CPU:
               2%          WindowServer
               1%          EyeTV
               0%          RealPlayer Downloader Agent
               0%          fontd
               0%          PluginProcess
Top Processes by Memory:
          238 MB          Safari
          209 MB          WebProcess
          102 MB          Genieo
          82 MB          Finder
          82 MB          WindowServer
Virtual Memory Information:
          1.52 GB          Free RAM
          1.43 GB          Active RAM
          377 MB          Inactive RAM
          439 MB          Wired RAM
          246 MB          Page-ins
          0 B          Page-outs

Thank you very much. I did the steps you advised and now its running well. I am worried about the malwares. I ran the same things again and this is what I got. Have those softwares removed?
EtreCheck version: 1.9.11 (43) - report generated 9 June 2014 12:47:17 AM AEST
Hardware Information:
          iMac (24-inch, Early 2009)
          iMac - model: iMac9,1
          1 2.66 GHz Intel Core 2 Duo CPU: 2 cores
          4 GB RAM
Video Information:
          NVIDIA GeForce 9400 - VRAM: 256 MB
System Software:
          Mac OS X 10.7.5 (11G63) - Uptime: 0 days 0:2:29
Disk Information:
          WDC WD6400AAKS-40H2B0 disk0 : (640.14 GB)
                    disk0s1 (disk0s1) <not mounted>: 209.7 MB
                    Macintosh HD (disk0s2) / [Startup]: 632.99 GB (385.64 GB free)
                    Recovery HD (disk0s3) <not mounted>: 650 MB
                    BOOTCAMP (disk0s4) /Volumes/BOOTCAMP: 6.28 GB (6.27 GB free)
          OPTIARC DVD RW AD-5670SC
USB Information:
          Apple Inc. Built-in iSight
          Sony Storage Media 4.05 GB
                    MANAN'S USB (disk1s1) /Volumes/MANAN'S USB: 4.04 GB (3.57 GB free)
          Apple Computer, Inc. IR Receiver
          Microsoft Microsoft® Nano Transceiver v1.0
          Apple Inc. BRCM2046 Hub
                    Apple Inc. Bluetooth USB Host Controller
Kernel Extensions:
          [not loaded] com.elgato.driver.DontMatchAfaTech (1.1) Support
          [not loaded] com.elgato.driver.DontMatchCinergy450 (1.1) Support
          [not loaded] com.elgato.driver.DontMatchCinergyXS (1.1) Support
          [not loaded] com.elgato.driver.DontMatchEmpia (1.1) Support
          [not loaded] com.elgato.driver.DontMatchVoyager (1.1) Support
          [kext loaded] com.silex.driver.sxuptp (1.5.1) Support
          [not loaded] com.wire.USBEthernetController (1.0.5) Support
Startup Items:
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Problem System Launch Daemons:
          [running] GSInGameService.plist Support
Problem System Launch Agents:
          [running] org.thebends.iphonedisk.mobile_fs_util.plist Support
Launch Daemons:
          [loaded] com.adobe.fpsaud.plist Support
          [invalid] com.Affinegy.InstaLANd.plist
          [loaded] com.microsoft.office.licensing.helper.plist Support
          [running] Jack.plist Support
Launch Agents:
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          [loaded] com.hp.help.tocgenerator.plist Support
User Launch Agents:
          [failed] com.apple.CSConfigDotMacCert-[...]@me.com-SharedServices.Agent.plist
          [running] com.google.Chrome.framework.plist Support
          [loaded] com.google.keystone.agent.plist Support
          [running] com.spotify.webhelper.plist Support
User Login Items:
          iTunesHelper
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          Belkin Router Monitor
          EyeTV Helper
          EyeTV
          uTorrent
          Spotify
          Genieo
          RealPlayer Downloader Agent
          HP Product Research
          HP Scheduler
Internet Plug-ins:
          DirectorShockwave: Version: 12.1.2r152 - SDK 10.6 Support
          Unity Web Player: Version: UnityPlayer version 4.3.7f1 - SDK 10.6 Support
          OfficeLiveBrowserPlugin: Version: 12.2.8 Support
          VLC Plugin: Version: 1.0.5 Support
          Silverlight: Version: 4.0.60531.0 Support
          FlashPlayer-10.6: Version: 13.0.0.214 - SDK 10.6 Support
          QuickTime Plugin: Version: 7.7.1
          Flash Player: Version: 13.0.0.214 - SDK 10.6 Support
          googletalkbrowserplugin: Version: 1.9.2.1599 Support
          npgtpo3dautoplugin: Version: 0.1.43.4 Support
          SharePointBrowserPlugin: Version: 14.3.6 - SDK 10.6 Support
          iPhotoPhotocast: Version: 7.0
          JavaAppletPlugin: Version: 14.9.0 - SDK 10.7 Check version
Safari Extensions:
          Omnibar: Version: 1.2
Audio Plug-ins:
          iSightAudio: Version: 7.7.1 - SDK 10.7
iTunes Plug-ins:
          Quartz Composer Visualizer: Version: 1.3 - SDK 10.7
User Internet Plug-ins:
          RealPlayer Plugin: Version: (null) Support
          Google Earth Web Plug-in: Version: 7.1 Support
3rd Party Preference Panes:
          Flash Player Support
          Growl Support
          MacFUSE Support
Time Machine:
          Time Machine not configured!
Top Processes by CPU:
              47%          Genieo
              10%          Safari
               8%          WebProcess
               2%          WindowServer
               1%          EyeTV
Top Processes by Memory:
          123 MB          WebProcess
          111 MB          Safari
          89 MB          Genieo
          78 MB          WindowServer
          66 MB          Finder
Virtual Memory Information:
          1.90 GB          Free RAM
          1.17 GB          Active RAM
          277 MB          Inactive RAM
          417 MB          Wired RAM
          228 MB          Page-ins
          0 B          Page-outs

My imac is very slow recently. What can I do to fix that?

My imac is very slow recently. What can I do to fix that?

What is slow?
Lauching of applications? Loading of internet web site? - Both?
How much available space is on your hard drive?

My iMac running very slow some times its hang, its happened after I update Lion, please anybody advice me what to do?

My iMac running very slow some times its hang, its happened after I update Lion, please anybody advice me what to do?

See:
Mac Maintenance Quick Assist,
Mac OS X speed FAQ,
Speeding up Macs,
Macintosh OS X Routine Maintenance,
Essential Mac Maintenance: Get set up,
Essential Mac Maintenance: Rev up your routines,
Maintaining OS X,
Five Mac maintenance myths, and
Myths of required versus not required maintenance for Mac OS X for information.

IMac running very slow at times. Activity monitor showing hpdot4d using approx 500% cpu. How can I fix this?

IMAC running very slow. Activity monitor shows hpdot4d using about 500% cpu. How can I fix this?
Using mavericks OS X 10.9.5
Help!

Have restarted computer, process hpdot4d has disappeared. Have printed a page from HP printer but computer fine now.
Thanks.

24" imac 2.4 says connected to internet via airport--but does not

I just got a new 2.4ghz 24" aluminum imac. There are three other macs in my house, all of which connect to our wireless network and are able to browse the internet. This new computer can connect to the network, yet it always has one of two problems: either it says it is connected to the network, but can't access the internet, or it says it is connected to the internet via airport, but when you open your web browser, no such luck. Many times when I open the network preference panel, there is no router number assigned. Sometimes there is. I can connect to other networks in the neighborhood that don't require a password just fine (how I'm writing this). Why can this new machine not connect, when all three of the other macs in the house have no problem?
anyone, please help. this is frustrating.
thanks,
keegan

OK but, like you, my other machines (PowerPC iMac and Power Book) did seem to work OK while the new iMac was playing-up. It was only when I noticed that the Old iMac had not downloaded some podcasts that I started to look at the router. I now remember having a similar problem a few years ago - frequent failure to automatically log-in to the router, occasional failure of manual log-ins and slow/unreliable connection once logged-in. A new router fixed the problem. It's a real pain but there you are. Must remember to keep receipt of current router and kick-up a fuss if it fails within the guarantee period.
Sorry if this doesn't help but I thought it worthwhile posting my experience over the last 2 days.
Have you tried connecting to your router by ethernet?
I'll let you know if the problem returns but all is sweetness and light at present.

My iPad will connect to the Internet but my iMac keeps dropping the connection or connects very slow.

My iPad is working fine and connecting to the internet no problem. My iMac computer, when I check the system preferences and I go into network it says my network is working fine and I appear to be connected to the Internet, yet when I going try to go on safari it won't let me connect to the Internet or if it does the connection is slow. When I do manage to connect to the internet, the connection drops quickly. What do I do?

Please answer as many of the following questions as you can.
Are all network applications slow, or only some? If only some, which ones?
Is networking always slow, or only sometimes?
Disconnect all other devices from the network. Any change?
If you can connect to more than one network, are they all slow?
If possible, connect to your router with an Ethernet cable and turn off Wi-Fi. Any difference?
Boot in safe mode and test. Any difference?

Imac internet connection very slow

All of a sudden everything has slowed to a crawl. Is there something I can do? don't think it's Comcast because my Iphone is working fine.

Start From here: my internet very slow speed mac.
Start From here: my internet very slow speed mac.
Slow internt can by because DNS problem OR app ,
Start from Console -> All Messages,
In my case I found a program HideMyIp (hidemyipdaemon {errXXX})
I remove the program and fix the problem!!
Good Luck

MBP no longer connects to network via Airport

today my MBP will not connect to my network via airport. Several other apple devices connect to the network no problem. MBP connects to the network OK via ethernet cable.
When I try to connect it just keep prompting for network password & user password, generates spinning wheel but then returns invalid password dialogue box. Tried several times and no success - occasionally there is an additional dialogue box " Apple80211agent......."
Pass word is fine as 5 other devices connect without any issue. What is going on?
Incidentally, just thought to create another Airport connection and hey presto it connects.
Still confused.

Your local LAN runs through your router.
All your ethernet ports, and your modem and router, should be behind and filtered from excess current. That means a UPS generally. And run input line thru UPS (coax) first, then run RJ45 back through UPS again (there can still be excess surge or current on the line).
Modems and routers can be compromised by surge outage or storm. So can ethernet ports.
You have two ethernet ports and you tried with both also.
What you did not do that I would have added is SMC Reset / Reset NVRAM/PRAM.
This is what I have had for the last year, very nice and stronger signals thruout the house.
http://www.amazon.com/NETGEAR-Wireless-Router-Gigabit-R6200/dp/B008HO9DIG/

IMac is very slow after switching to OSX Mavericks

I'm still getting used to the philosophy of this site, so excuse me if I stray. I had posted in a different thread and was asked to start a new thread.
I have a 20-inch, Early 2008 iMac and I've been upgraded to 10.9.4 for a few weeks. I did have the fan problem, but sorted that out, forget what I did but may be able to retrace my steps.
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Do I need to just go back to 10.6.8, or is this Mac's hardware is not compatible with 10.9.4? It seemed that the upgrade was recommended for this machine.
I'd appreciate any thoughts, recommendation, suggestions. Thanks!
PS: I was asked to send top 5 CPU and then the average User CPU....
Firefox                    6.7%
Activity Monitor     1.0 %
Window Server     0.8%
Firefox Plugin         1.1%
kernel_task          0.4%
User:                    4 - 11%
As you know, these constantly change, but I just jotted things down in the list above. Nothing was taking any serious time. Firefox will momentarily go up to 30%. I know when Time Machine is slowing things down because I can see it backing up with the icon on the menu bar, but that's not only when it's slow. It's just always slow starting applications or opening new windows in Firefox, opening a new window in Word or Excel. I always have Activity Monitor open to watch for anything unusual, like if Firefox is bogging me down.
The question is should I expect this OS to be bogging this machine down, in general? Thanks!

It would be nice to know how much RAM is installed. A report of this would help:
You should use Activity Monitor to check for:
Open Activity Monitor in the Utilities folder. Select All Processes from the View menu. Click on the CPU tab in the toolbar. Click twice on the CPU% column header to display in descending order. If you find a process using a large amount of CPU time (>=70,) then select the process and click on the Quit icon in the toolbar. Click on the Force Quit button to kill the process. See if that helps. Be sure to note the name of the runaway process so you can track down the cause of the problem.
Try these in order testing your system after each to see if it's back to normal:
1. a. Resetting your Mac's PRAM and NVRAM
    b. Intel-based Macs: Resetting the System Management Controller (SMC)
2. Restart the computer in Safe Mode, then restart again, normally. If this doesn't help, then:
     Boot to the Recovery HD: Restart the computer and after the chime press and hold down the
     COMMAND and R keys until the Utilities 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.
3. Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the Utilities 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. Select Restart from the Apple menu.
     Reinstall the 10.9.4 update: OS X Mavericks 10.9.4 Update (Combo).
4. Reinstall Lion/Mountain Lion, Mavericks: Reboot from the Recovery HD. Select Reinstall Lion/Mountain Lion, Mavericks from the Utilities menu, and click on the Continue button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.
     Reinstall the 10.9.4 update: OS X Mavericks 10.9.4 Update (Combo).
Download and install EtreCheck 1.9.12. Run on your system and copy and post results here.

Network connection very slow, lot of drops

Hello!
On my network, there's an ADSL modem; an AirPort Extreme is connected to it and all my computers are connected to that AirPort Extreme.
Initially, I had set the AirPort Extreme as a bridge and the modem was in PPPoE. However, I had weird troubles with that setup (one computer couldn't reach another one, not even ping) so I made the other way around: the modem is now in bridge mode and the AirPort Extreme handles the PPPoE connection.
Since then (at least, I guess), downloading from the Internet or simply browsing is a nightmare. Connections would start at a varying low rate (always less than 30 KB/s, sometimes 5 KB/s) and always slow down until the connection drops completely. For small files, I can hope to download a 1 MB file in 40 minutes; for larger ones, it's hopeless.
I've tried to rule out the AirPort Extreme, connecting one computer directly to the modem. I reset the modem (since it's in bridge mode and it's beyond the subnet made from the AirPort Extreme, how can I reach it from my network?) and enter my ISP data. When all the lights on the modem are fine, it tells me some tests failed; I can't connect to the Internet that way. It looks like the modem lost its ability to connect as PPPoE when I defined it as a bridge (?).
I then tried to rule out the modem. I connected my computer and the ADSL line to the AirPort Extreme (which still had the PPPoE settings); the AirPort Extreme would not connect or reach a DNS (what's the purpose of having PPPoE settings if it can't connect to the Internet without even passing by a modem in bridge mode?).
In short, I can't rule out either the modem nor the AirPort Extreme, because they both can't connect to the Internet separately (the modem could before I inverted which device is in bridge mode). After all my attempts, the only way to get Internet back is to set the modem again as a bridge and use the AirPort Extreme for the PPPoE, which makes the whole problem of a very slow connection (even unusable) that I'm trying to repair. I'm lost at that point.
Any help would be really welcome!

Bob Timmons wrote:
Two possibilities:
1) The modem is not working correctly and should be replaced
If that's the case, then I'm feeling guilty, as it worked before I set it as a bridge.
2) Your log in information has changed due to service provider updates. Contact your provider to verify your account details
It's actually my mother who created that account; I'll ask her further.
my native language isn't English
But, your English is excellent.
Thank you.
Some countries use PPPoA authentication, and not PPPoE. Although they are similar, if your provider really uses PPPoA credentials, then you cannot log on from your Mac or use the AirPort router to provide the log on authorization, since Apple does not support PPPoA.
Well, I tried using PPPoA recently and it wasn't better. Also, the fact that the AirPort is currently the one making the PPPoE authentication seems to definitively indicate it's not PPPoA (thanks to your information that it wouldn't work in that case).
Generally, my opinion would be that things will work better if you use the modem or a modem/router to provide the connection service and run the AirPort in Bridge Mode.....rather than trying to put the modem in Bridge Mode and use the AirPort to provide the connection service.
Yes, I agree. Actually, I had another problem with the previous setup (AirPort as bridge and modem for PPPoE) where, on my LAN with two computers, only one could reach the other one (the connection worked in one direction only); I couldn't even use file sharing, Remote Desktop or even ping (because, even trying from the working sense, the response would often not come back). In this Apple forum, I got the suggestion to exchange which device was in bridge mode and, indeed, now I can communicate from and to all computers. Since I've realised my connection to the Internet is now mostly broken, I should have been satisfied with the previous problem…
I'm hoping to go back to an Internet connection that works, and not get the first issue of computers not being reachable on the LAN. The big trouble here is that all these behaviours I've experienced are weird (am I outside of the logic with my use of the devices?). I'm also noticing that the first problem sounds to have arrived since I replaced my old router by the AirPort Extreme.
If your modem is 4-5 years old, then that might be another reason to consider replacing it. Ask your provider what they would recommend.
Wow, mine is actually way older than that! I don't think we've ever changed it since we had an Internet connection (around 1998). At this time, things were not designed to break too soon, right?
Perhaps it had to break with this duration of use, and it just waited that I change settings to break… Doesn't sound a likely scenario, however.
I'm considering trying with my neighbour's modem (with his connection's settings), with the AirPort in bridge mode. If it works, I'll be almost certain the problem is the modem, I'm right?
Thank you very much for your help so far; things are getting clearer!

Internet connection very slow - ISP blames my computer...

Greetings,
I have DSL connection that has been running very very slow... dialup slow... I use airport, so I unplugged it and connected the ethernet cable directly to the comp - with no results.
I called my ISP, they tested the modem speed, reset the modem & went through all the settings - with no results. The modem speed is fine, so they say the problem is with my powerbook. I've rebooted the computer numerous times, also I recently cleaned up my hard drive (which has been full for months) and I currently have 14gb of free space.
What else can I do? Are there any diagnostic utilities/etc you can recommend?
Thank you in advance for all your help.
powerbook g4 Mac OS X (10.3.9)

You actually are close enough to their 3meg down that you can't complain. 2.8meg down and 700kb up is fine, unless it's supposed to be their FIOS that is.
Sounds like it is the site(s) that are slow, like these boards at times.
Joe

IMac connection very slow via airport

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