Hi, I am having the same problem of suboptimal BW with my ISP (FIOS). I get the right speed on a windows laptop and on a mac book pro but I get much slower Upload speed on my iMac. Download speed is the right one on all machines. Rebooting in safe mode makes the problem go away. I have installed already the FIOS Mac broadband optimizer and removed some SW that I found could interact, I also tested different DNS servers. Still no success. Below my system dump following step 1-5. Any suggestions are welcome.
Step 1
com.Logitech.Control Center.HID
com.Logitech.Unifying.HID Driver
com.parallels.kext.prl_usb_connect (6.0
com.parallels.kext.prl_hypervisor (6.0
com.parallels.kext.prl_hid_hook (6.0
com.parallels.kext.prl_netbridge (6.0
com.parallels.kext.prl_vnic (6.0
Step 2
com.parallels.vm.prl_naptd
org.samba.smbd
org.samba.nmbd
com.realvnc.vncserver
com.parallels.desktop.launchdaemon
com.microsoft.office.licensing.helper
com.google.keystone.daemon
com.adobe.SwitchBoard
Step 3
jp.co.canon.SELPHYES.BG
com.wacom.pentablet
com.tvmobili.artwork
com.parallels.vm.prl_pcproxy
com.parallels.desktop.client.launch
com.Logitech.Control
com.google.keystone.root.agent
com.adobe.CS5ServiceManager
com.google.GoogleContactSyncAgent
Step 4
/Library/Components:
/Library/Extensions:
VBoxDrv.kext
VBoxNetAdp.kext
VBoxNetFlt.kext
VBoxUSB.kext
/Library/Frameworks:
Adobe AIR.framework
MacFUSE.framework
NyxAudioAnalysis.framework
OSXFUSE.framework
PluginManager.framework
SGCS85.framework
iLifeFaceRecognition.framework
iLifeKit.framework
iLifePageLayout.framework
iLifeSQLAccess.framework
iLifeSlideshow.framework
/Library/Input Methods:
/Library/Internet Plug-Ins:
AdobePDFViewer.plugin
AmazonMP3DownloaderPlugin.plugin
Flash Player.plugin
Google Earth Web Plug-in.plugin
JavaAppletPlugin.plugin
Quartz Composer.webplugin
QuickTime Plugin.plugin
SharePointBrowserPlugin.plugin
SharePointWebKitPlugin.webplugin
Silverlight.plugin
WacomNetscape.plugin
WacomSafari.plugin
flashplayer.xpt
iPhotoPhotocast.plugin
nsIQTScriptablePlugin.xpt
/Library/Keyboard Layouts:
/Library/LaunchAgents:
com.Logitech.Control Center.Daemon.plist
com.adobe.AAM.Updater-1.0.plist
com.adobe.CS5ServiceManager.plist
com.google.keystone.agent.plist
com.parallels.desktop.launch.plist
com.parallels.vm.prl_pcproxy.plist
com.tvmobili.artwork.plist
com.wacom.pentablet.plist
jp.co.canon.SELPHYES.BG.plist
/Library/LaunchDaemons:
com.adobe.SwitchBoard.plist
com.google.keystone.daemon.plist
com.microsoft.office.licensing.helper.plist
com.parallels.desktop.launchdaemon.plist
com.realvnc.vncserver.plist
/Library/PreferencePanes:
Flash Player.prefPane
Logitech Control Center.prefPane
PenTablet.prefPane
/Library/PrivilegedHelperTools:
Google Drive Icon Helper
com.microsoft.office.licensing.helper
/Library/QuickLook:
ParallelsQL.qlgenerator
QuickLookEyeTV.qlgenerator
iWork.qlgenerator
/Library/QuickTime:
AppleIntermediateCodec.component
AppleMPEG2Codec.component
EyeTV MPEG Support.component
/Library/ScriptingAdditions:
/Library/Spotlight:
AppleWorks.mdimporter
Microsoft Office.mdimporter
ParallelsMD.mdimporter
iWork.mdimporter
/Library/StartupItems:
EyeConnect
/etc/mach_init.d:
dashboardadvisoryd.plist
/etc/mach_init_per_login_session.d:
/etc/mach_init_per_user.d:
com.adobe.SwitchBoard.monitor.plist
Library/Address Book Plug-Ins:
SkypeABDialer.bundle
SkypeABSMS.bundle
Library/Fonts:
Library/Input Methods:
.localized
Library/Internet Plug-Ins:
Picasa.plugin
Library/Keyboard Layouts:
Library/LaunchAgents:
com.apple.CSConfigDotMacCert-federico.ardanaz@me.com-SharedServices.Agent.plist
com.apple.FTMonitor.plist
com.apple.imagent.plist
com.apple.marcoagent.plist
com.google.GoogleContactSyncAgent.plist
org.virtualbox.vboxwebsrv.plist
Library/PreferencePanes:
.localized
Step 5
CPULed, iTunesHelper, start, EvernoteHelper, ScanSnap Manager, Alfred, GeekTool Helper, public, Backups, PS3 Media Server, Boxee Media Manager, MediaMaster Server, EyeTV Helper, Solar Service, SPanel