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Windows 7, FireFox slow browsing with uTorrent

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I've encountered this problem ever since I've become a uTorrent user (years ago). I very much enjoy uTorrent and have either lived with it or resolved it from some various methods. I've changed IP's a few times over the years, and computers as well as operating systems many times. However this latest occurrence has me just baffled.

I use Firefox and am running on Windows 7 RC 7077, with uTorrent version 1.8.2. The program itself works fine (given the weak number of seeders on these damn torrents) but almost completely disables any other activity requiring bandwith. Speaking of which I am on an ISP that provides me speeds of around 4000 - 5000 kb/s down and 700 or so kb/s up (hell even one of the DSL reports had me pegged for 18k down). My ISP does not throttle any of my connections per the link that was listed in one of the mod's signatures.

The following are some of the applicable changes I've made to uTorrent in an effort to correct this issue.

net.max_halfopen has been set to 4

bt.connect_speed has been set to 10

IP resolving has been disabled.

DHT for Network and new torrents has been disabled (along with Local Peer Discovery).

UPnP and NAT-PMP have both been disabled.

peer.resolve_country has not been changed and remains false.

Max number of connections has been changed to 100 Global connections, which is the same figure as max number of connected peers per torrent.

The max number of active torrents is 20, with 10 of those being active downloads.

bt.transp_disposition has been changed to 5.

Global download rate is limited to 250kb/s and the upload rate is 40kb/s.

If there is any other relevant information I should provide just let me know. Thanks in advance for your help, and thanks for making a great torrent program.

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Ack, I think I need to update the troubleshooting checklist so that people don't get confused... bt.transp_disposition should only be set to 5 for µTorrent v1.8.3 and above. v1.8.2 users should leave it at 0.

Can you try lowering net.max_halfopen to 2 instead? Does it alleviate the problem (slightly) at all?

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Alright thanks, I reset the bt.transp_disposition back to 0 and changed the net.max_halfopen to 2 instead. Neither of which had much of any discernible effect on the browsing. I reset most all of the settings again and attempted to tweak the upload speed which seems to have a larger impact on it.

However this could present an even bigger problem by severely impacting my ability to seed.

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You install any security software/firewall/AV on that win7 ? Is there excess CPU usage?

Can you compare the displayed upload in Speed tab, with the Networking tab in Task Manager or any other network monitoring application. Is there a discrepancy? Once you figure out the difference, if you change Ctrl-P > Advanced > net.calc_overhead to TRUE does the problem persist.

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Indeed, Cox seems to have caused some problems for other users, but I'm not sure it was causing entire Internet slowdowns for users :\

a) get HijackThis from trendsecure.com, run it, view the log, and post the contents here

B) get Process Explorer from sysinternals.com, run it, Ctrl+D (to show the lower DLL pane), select the µTorrent process from the list, Ctrl+S (and save the list somewhere you'll find easily -- like the Desktop), then post the contents of the saved process list in the .txt file here

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Results of Hijackthis scan:

Logfile of Trend Micro HijackThis v2.0.2

Scan saved at 2:45:07 PM, on 5/24/2009

Platform: Unknown Windows (WinNT 6.01.2981)

MSIE: Unable to get Internet Explorer version!

Boot mode: Normal

Running processes:





C:\Program Files\Logitech\GamePanel Software\LCD Manager\LCDMon.exe

C:\Program Files\Logitech\GamePanel Software\G-series Software\LGDCore.exe

C:\Program Files\Portrait Displays\Pivot Software\wpCtrl.exe

C:\Program Files\Java\jre6\bin\jusched.exe

C:\Program Files\iTunes\iTunesHelper.exe

C:\Program Files\CyberLink\PowerDVD8\PDVD8Serv.exe

C:\Program Files\Logitech\GamePanel Software\LCD Manager\Applets\LCDPop3.exe

C:\Program Files\Logitech\GamePanel Software\LCD Manager\Applets\LCDCountdown.exe

C:\Program Files\Logitech\GamePanel Software\LCD Manager\Applets\LCDClock.exe

C:\Program Files\Logitech\GamePanel Software\LCD Manager\Applets\LCDMedia.exe

C:\Program Files\CyberLink\Shared Files\brs.exe

C:\Program Files\Portrait Displays\Pivot Software\floater.exe

C:\Program Files\Logitech\SetPoint II\SetpointII.exe

C:\Program Files\Common Files\Logishrd\KHAL2\KHALMNPR.EXE

C:\Program Files\Yahoo!\Messenger\YahooMessenger.exe

C:\Program Files\uTorrent\uTorrent.exe


C:\Program Files\DVD Flick\dvdflick.exe

C:\Program Files\Mozilla Firefox\firefox.exe


C:\Program Files\Trend Micro\HijackThis\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://go.microsoft.com/fwlink/?LinkId=69157

R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://go.microsoft.com/fwlink/?LinkId=69157

R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =

R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =

R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Local Page =

R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = *.local

R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =

O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll

O2 - BHO: Java Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files\Java\jre6\bin\jp2ssv.dll

O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\Windows\system32\NvCpl.dll,NvStartup

O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\Windows\system32\NvMcTray.dll,NvTaskbarInit

O4 - HKLM\..\Run: [Kernel and Hardware Abstraction Layer] KHALMNPR.EXE

O4 - HKLM\..\Run: [Launch LCDMon] "C:\Program Files\Logitech\GamePanel Software\LCD Manager\LCDMon.exe"

O4 - HKLM\..\Run: [Launch LGDCore] "C:\Program Files\Logitech\GamePanel Software\G-series Software\LGDCore.exe" /SHOWHIDE

O4 - HKLM\..\Run: [PivotSoftware] "C:\Program Files\Portrait Displays\Pivot Software\wpctrl.exe"

O4 - HKLM\..\Run: [DT ACR] C:\Program Files\Common Files\Portrait Displays\Shared\DT_startup.exe -ACR

O4 - HKLM\..\Run: [sunJavaUpdateSched] "C:\Program Files\Java\jre6\bin\jusched.exe"

O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\QTTask.exe" -atboottime

O4 - HKLM\..\Run: [iTunesHelper] "C:\Program Files\iTunes\iTunesHelper.exe"

O4 - HKLM\..\Run: [RemoteControl8] "C:\Program Files\CyberLink\PowerDVD8\PDVD8Serv.exe"

O4 - HKLM\..\Run: [PDVD8LanguageShortcut] "C:\Program Files\CyberLink\PowerDVD8\Language\Language.exe"

O4 - HKLM\..\Run: [bDRegion] C:\Program Files\Cyberlink\Shared Files\brs.exe

O4 - HKCU\..\Run: [Messenger (Yahoo!)] "C:\Program Files\Yahoo!\Messenger\YahooMessenger.exe" -quiet

O4 - HKCU\..\Run: [DAEMON Tools Lite] "C:\Program Files\DAEMON Tools Lite\daemon.exe" -autorun

O4 - HKCU\..\Run: [steam] "C:\Program Files\Steam\Steam.exe" -silent

O4 - HKUS\S-1-5-19\..\Run: [sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /autoRun (User 'LOCAL SERVICE')

O4 - HKUS\S-1-5-19\..\RunOnce: [mctadmin] C:\Windows\System32\mctadmin.exe (User 'LOCAL SERVICE')

O4 - HKUS\S-1-5-20\..\Run: [sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /autoRun (User 'NETWORK SERVICE')

O4 - HKUS\S-1-5-20\..\RunOnce: [mctadmin] C:\Windows\System32\mctadmin.exe (User 'NETWORK SERVICE')

O4 - Global Startup: Adobe Reader Speed Launch.lnk = C:\Program Files\Adobe\Acrobat 7.0\Reader\reader_sl.exe

O4 - Global Startup: SetPointII.lnk = ?

O13 - Gopher Prefix:

O23 - Service: Apple Mobile Device - Apple Inc. - C:\Program Files\Common Files\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe

O23 - Service: Bonjour Service - Apple Inc. - C:\Program Files\Bonjour\mDNSResponder.exe

O23 - Service: Portrait Displays Display Tune Service (DTSRVC) - Unknown owner - C:\Program Files\Common Files\Portrait Displays\Shared\DTSRVC.exe

O23 - Service: iPod Service - Apple Inc. - C:\Program Files\iPod\bin\iPodService.exe

O23 - Service: NVIDIA Display Driver Service (nvsvc) - NVIDIA Corporation - C:\Windows\system32\nvvsvc.exe

O23 - Service: Portrait Displays SDK Service (PdiService) - Portrait Displays, Inc. - C:\Program Files\Common Files\Portrait Displays\Drivers\pdisrvc.exe

O23 - Service: Steam Client Service - Valve Corporation - C:\Program Files\Common Files\Steam\SteamService.exe


End of file - 5475 bytes

Results of Process Explorer:

Process PID CPU Description Company Name

System Idle Process 0 89.39

Interrupts n/a Hardware Interrupts

DPCs n/a 3.03 Deferred Procedure Calls

System 4

smss.exe 272 Windows Session Manager Microsoft Corporation

csrss.exe 364 Client Server Runtime Process Microsoft Corporation

wininit.exe 424 Windows Start-Up Application Microsoft Corporation

services.exe 472 Services and Controller app Microsoft Corporation

svchost.exe 660 Host Process for Windows Services Microsoft Corporation

WmiPrvSE.exe 3160 WMI Provider Host Microsoft Corporation

dllhost.exe 4724 COM Surrogate Microsoft Corporation

nvvsvc.exe 720 NVIDIA Driver Helper Service, Version 181.71 NVIDIA Corporation

rundll32.exe 1160 Windows host process (Rundll32) Microsoft Corporation

svchost.exe 764 Host Process for Windows Services Microsoft Corporation

svchost.exe 872 Host Process for Windows Services Microsoft Corporation

svchost.exe 912 Host Process for Windows Services Microsoft Corporation

WUDFHost.exe 1264 Windows Driver Foundation - User-mode Driver Framework Host Process Microsoft Corporation

WUDFHost.exe 2040 Windows Driver Foundation - User-mode Driver Framework Host Process Microsoft Corporation

dwm.exe 1240 Desktop Window Manager Microsoft Corporation

svchost.exe 952 Host Process for Windows Services Microsoft Corporation

svchost.exe 1100 Host Process for Windows Services Microsoft Corporation

svchost.exe 1328 Host Process for Windows Services Microsoft Corporation

spoolsv.exe 1428 Spooler SubSystem App Microsoft Corporation

svchost.exe 1472 Host Process for Windows Services Microsoft Corporation

AppleMobileDeviceService.exe 1544 Apple Mobile Device Service Apple Inc.

mDNSResponder.exe 1576 Bonjour Service Apple Inc.

DTSRVC.exe 1620

svchost.exe 1652 Host Process for Windows Services Microsoft Corporation

pdisrvc.exe 1692 pdisrvc Portrait Displays, Inc.

taskhost.exe 736 Host Process for Windows Tasks Microsoft Corporation

iPodService.exe 2720 iPodService Module Apple Inc.

SearchIndexer.exe 3276 Microsoft Windows Search Indexer Microsoft Corporation

SearchProtocolHost.exe 4500 Microsoft Windows Search Protocol Host Microsoft Corporation

SearchFilterHost.exe 3776 Microsoft Windows Search Filter Host Microsoft Corporation

svchost.exe 3316 Host Process for Windows Services Microsoft Corporation

wmpnetwk.exe 3616 Windows Media Player Network Sharing Service Microsoft Corporation

taskhost.exe 3772 Host Process for Windows Tasks Microsoft Corporation

svchost.exe 3260 Host Process for Windows Services Microsoft Corporation

svchost.exe 756 Host Process for Windows Services Microsoft Corporation

taskhost.exe 4712 Host Process for Windows Tasks Microsoft Corporation

lsass.exe 488 Local Security Authority Process Microsoft Corporation

lsm.exe 496 Local Session Manager Service Microsoft Corporation

csrss.exe 432 0.76 Client Server Runtime Process Microsoft Corporation

winlogon.exe 568 Windows Logon Application Microsoft Corporation

explorer.exe 1508 Windows Explorer Microsoft Corporation

rundll32.exe 2136 Windows host process (Rundll32) Microsoft Corporation

LCDMon.exe 2152 Logitech LCD Manager Logitech Inc.

LCDPop3.exe 2336 Logitech G-series POP3 Monitor Logitech Inc.

LCDCountdown.exe 2344 Logitech G-series LCD Countdown Timer Logitech Inc.

LCDClock.exe 2352 Logitech G-series LCD Clock Logitech Inc.

LCDMedia.exe 2360 Logitech G-series Media Display Logitech Inc.

LGDCore.exe 2160 Logitech G-series Profiler Logitech Inc.

wpCtrl.exe 2176 Pivot Software Support Application Portrait Displays, Inc.

Floater.exe 2384 Pivot Software Support DLL Portrait Displays, Inc.

jusched.exe 2196 Java Platform SE binary Sun Microsystems, Inc.

iTunesHelper.exe 2232 iTunesHelper Module Apple Inc.

PDVD8Serv.exe 2260 PowerDVD RC Service Cyberlink Corp.

brs.exe 2368 brs cyberlink

SetPointII.exe 2928 Logitech SetPoint EventManager Logitech Inc.

KHALMNPR.exe 2952 Logitech KHAL Main Process Logitech, Inc.

YahooMessenger.exe 2664 Yahoo! Messenger Yahoo! Inc.

uTorrent.exe 2280 1.52 µTorrent BitTorrent, Inc.

dvdflick.exe 636 DVD Flick Dennis "Exl" Meuwissen

firefox.exe 3660 Firefox Mozilla Corporation

procexp.exe 1116 5.30 Sysinternals Process Explorer Sysinternals - www.sysinternals.com

notepad.exe 5916 Notepad Microsoft Corporation

Process: uTorrent.exe Pid: 2280

Name Description Company Name Version




actxprxy.dll ActiveX Interface Marshaling Library Microsoft Corporation 6.1.7077.0

ADVAPI32.dll Advanced Windows 32 Base API Microsoft Corporation 6.1.7077.0

apphelp.dll Application Compatibility Client Library Microsoft Corporation 6.1.7077.0


CFGMGR32.dll Configuration Manager DLL Microsoft Corporation 6.1.7077.0

CLBCatQ.DLL COM+ Configuration Catalog Microsoft Corporation 2001.12.8007.0

COMCTL32.dll User Experience Controls Library Microsoft Corporation 6.10.7077.0

comctl32.dll.mui User Experience Controls Library Microsoft Corporation 6.10.7077.0

comdlg32.dll Common Dialogs DLL Microsoft Corporation 6.1.7077.0

CRYPTBASE.dll Base cryptographic API DLL Microsoft Corporation 6.1.7077.0

CRYPTSP.dll Cryptographic Service Provider API Microsoft Corporation 6.1.7077.0

CSCAPI.dll Offline Files Win32 API Microsoft Corporation 6.1.7077.0

CSCDLL.dll Offline Files Temporary Shim Microsoft Corporation 6.1.7077.0

cscui.dll Client Side Caching UI Microsoft Corporation 6.1.7077.0




DEVOBJ.dll Device Information Set DLL Microsoft Corporation 6.1.7077.0

dhcpcsvc.DLL DHCP Client Service Microsoft Corporation 6.1.7077.0

dhcpcsvc6.DLL DHCPv6 Client Microsoft Corporation 6.1.7077.0

DnsApi.dll DNS Client API DLL Microsoft Corporation 6.1.7077.0

dwmapi.dll Microsoft Desktop Window Manager API Microsoft Corporation 6.1.7077.0

EhStorShell.dll Windows Enhanced Storage Shell Extension DLL Microsoft Corporation 6.1.7077.0

FirewallAPI.dll Windows Firewall API Microsoft Corporation 6.1.7077.0

fwpuclnt.dll FWP/IPsec User-Mode API Microsoft Corporation 6.1.7077.0

GDI32.dll GDI Client DLL Microsoft Corporation 6.1.7077.0

ieproxy.dll IE ActiveX Interface Marshaling Library Microsoft Corporation 8.0.7077.0

IMM32.DLL Multi-User Windows IMM32 API Client DLL Microsoft Corporation 6.1.7077.0

Iphlpapi.DLL IP Helper API Microsoft Corporation 6.1.7077.0

kernel32.dll Windows NT BASE API Client DLL Microsoft Corporation 6.1.7077.0

KERNELBASE.dll Windows NT BASE API Client DLL Microsoft Corporation 6.1.7077.0

KernelBase.dll.mui Windows NT BASE API Client DLL Microsoft Corporation 6.1.7077.0


LPK.dll Language Pack Microsoft Corporation 6.1.7077.0

mdnsNSP.dll Bonjour Namespace Provider Apple Inc.

MSCTF.dll MSCTF Server DLL Microsoft Corporation 6.1.7077.0

msvcrt.dll Windows NT CRT DLL Microsoft Corporation 7.0.7077.0

mswsock.dll Microsoft Windows Sockets 2.0 Service Provider Microsoft Corporation 6.1.7077.0


NSI.dll NSI User-mode interface DLL Microsoft Corporation 6.1.7077.0

ntdll.dll NT Layer DLL Microsoft Corporation 6.1.7077.0

ntmarta.dll Windows NT MARTA provider Microsoft Corporation 6.1.7077.0

ntshrui.dll Shell extensions for sharing Microsoft Corporation 6.1.7077.0

ole32.dll Microsoft OLE for Windows Microsoft Corporation 6.1.7077.0

oleaut32.dll Microsoft Corporation 6.1.7077.0

PhotoBase.dll Photo Base Library Microsoft Corporation 6.1.7077.0

profapi.dll User Profile Basic API Microsoft Corporation 6.1.7077.0

PROPSYS.dll Microsoft Property System Microsoft Corporation 7.0.7077.0

psapi.dll Process Status Helper Microsoft Corporation 6.1.7077.0


rasadhlp.dll Remote Access AutoDial Helper Microsoft Corporation 6.1.7077.0

RPCRT4.dll Remote Procedure Call Runtime Microsoft Corporation 6.1.7077.0

RpcRtRemote.dll Remote RPC Extension Microsoft Corporation 6.1.7077.0

rsaenh.dll Microsoft Enhanced Cryptographic Provider Microsoft Corporation 6.1.7077.0

sechost.dll Host for SCM/SDDL/LSA Lookup APIs Microsoft Corporation 6.1.7077.0

SETUPAPI.dll Windows Setup API Microsoft Corporation 6.1.7077.0

SHELL32.dll Windows Shell Common Dll Microsoft Corporation 6.1.7077.0

shfolder.dll Shell Folder Service Microsoft Corporation 6.1.7077.0

SHLWAPI.dll Shell Light-weight Utility Library Microsoft Corporation 6.1.7077.0

slc.dll Software Licensing Client Dll Microsoft Corporation 6.1.7077.0


srvcli.dll Server Service Client DLL Microsoft Corporation 6.1.7077.0

SspiCli.dll Security Support Provider Interface Microsoft Corporation 6.1.7077.0


USER32.dll Multi-User Windows USER API Client DLL Microsoft Corporation 6.1.7077.0

USERENV.dll Userenv Microsoft Corporation 6.1.7077.0

USP10.dll Uniscribe Unicode script processor Microsoft Corporation 1.626.7077.0

uTorrent.exe µTorrent BitTorrent, Inc.

uxtheme.dll Microsoft UxTheme Library Microsoft Corporation 6.1.7077.0

VERSION.dll Version Checking and File Installation Libraries Microsoft Corporation 6.1.7077.0

WindowsCodecs.dll Microsoft Windows Codecs Library Microsoft Corporation 6.1.7077.0

WINNSI.DLL Network Store Information RPC interface Microsoft Corporation 6.1.7077.0

winphook.dll Pivot Software Support DLL Portrait Displays, Inc.

WLDAP32.dll Win32 LDAP API DLL Microsoft Corporation 6.1.7077.0

WS2_32.dll Windows Socket 2.0 32-Bit DLL Microsoft Corporation 6.1.7077.0

wship6.dll Winsock2 Helper DLL (TL/IPv6) Microsoft Corporation 6.1.7077.0

wshtcpip.dll Winsock2 Helper DLL (TL/IPv4) Microsoft Corporation 6.1.7077.0

In regards to a few other comments I've never actually had a problem with Cox in either the uTorrent side of things or the browsing of the internet (at least not one that I wasn't able to overcome). Furthermore two of the links I had followed from this site would confirm that Cox does little when it comes to torrent users and their use of bandwith.

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Cox limits bittorrent traffic and shapes all traffic > 5p. At least in San Diego, CA.

I haven't done full-scale testing in Windows 7, but basic < 10 Mbit speeds seemed to work fine. The logfiles linked show Portrait Displays Pivot Software, staticcache.dat (which I don't recognize, can you find out the path, double clicking in the PE lower pane on the file should bring up its properties).

Are you using norman AV? If not, check out the normnfd.nls as well.

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In further inspection I've also noticed that my uTorrent speeds have seemingly dropped all across the board. Be it the private trackers that I connect to, or the ones where we find shall we say less generous seeders. I did however replace my router only recently because I needed 4 more slots. This may have something to do with it...

Jewelisheaven Pivot is display software used with my monitor, why I keep I don't know (I don't use any of the features on it like rotating the display...). Staticcache.dat was located here: C:\Windows\Fonts\StaticCache.dat This would suggest a font, but why it's there I do not know. Norman I also do not recognize, it was located in C:\Windows\System32\normnfd.nls I have not loaded any AV software on this build.

While those few are puzzling, like I mentioned at the beginning I have my suspicions that it may be a fault with my router (which was a cheap purchase) so I'll have to do some digging around tomorrow for any information I may need to tweak on this TP-Link TL-R860 router.

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  • 4 weeks later...

In your preference, check your global connections in the bandwidth area... mine is set to 2000(this depends if your router can take it) if it gets worse, set it at 400 to be in the safe area. For windows 7 i also found out another internet traffic reduction set in windows 7 itself... Go to My Computer ---> Uninstall or Change Programs ---> in that window find turn windows features on or off, click that ---> Uncheck "Remote Differential Compression"

This also made my latency in games better :)

Grrrr.... half asleep here... saw the global connections in your list.... o_O; my bad.. maybe the remote thingy will work for ya... -_-; zzzzzzz

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