uT grinds to a halt

[daty]

Everything was fine till about a week ago. No crashing, no internet connection interruption, D: 300 kB/s U: 56 kB/s

Even now, if I only enable/start new torrents with lots of seeders, everything is fine.

But after about 3-5 hours downloading of low seed torrents, it starts with more and more torrents down the queue

even though "Max number of active torrents (upload or download): 4"

The internet connection grinds to a halt, my IMs go offline. Exiting uT does not help, because it stays in Task Manager.

I have to kill the uT process and manually reboot the router for the connection to come up.

As Ultima said http://forum.utorrent.com/viewtopic.php?pid=368139#p368139

• tested with net.max_halfopen set to 2, 4 and default 8 (current = 2)

• Tried setting µTorrent's affinity to a single core CPU 0 (current = CPU 0, CPU 1)

• Global maximum number of connections: 90 (tried 50, 60)

• UPnP port mapping disabled

• NAT-PMP port mapping disabled

• I have not tried patching TCPIP.sys http://forum.utorrent.com/viewtopic.php?pid=368139#p368139

uTorrent v1.8.5 (build 17414) on

WinXP SP3 updated to 25-Jan-2010

Symantec Endpoint Protection 11.0.5002.333 Firewall configured to allow TCP and UDP traffic (both ways) on local port 57608

uTorrent.exe 1.8.5.17414 exempted from SEP Firewall

Internet Service Provider: Etisalat (United Arab Emirates, Middle East)

Connection type: DSL

Modem/Router: Aztech DSL600EU (Texas Instruments chipset) Firmware v3.6.0C-d

Port forwarding successfully implemented (network status green icon on µTorrent's status bar)

http://portforward.com/english/routers/port_forwarding/Aztech/DSL600EU/Utorrent.htm

Port Checker tool reports green all the time except the few seconds when uT is launched (which is normal).

uT > options > speed guide > click "Test if port is forwarded properly"

http://www.utorrent.com/testport.php?port=<port number>

Checking port 57608 on 83.110.157.x#x

OK! Port 57608 is open and accepting connections.

You will be able to receive incoming BitTorrent connections.

Referred pages:

Ultima's Troubleshooting Guide: http://forum.utorrent.com/viewtopic.php?id=15992

Setup guide: http://www.utorrent.com/documentation/connection-setup

Software Firewall Configurations: http://forum.utorrent.com/viewtopic.php?id=7862

Conservative Settings Chart: http://forum.utorrent.com/viewtopic.php?id=58404

Search: http://forum.utorrent.com/search.php

If I am doing something wrong/ posting wrong place buzz me at daty[at]in[dot]com

Online tester for ISP throttling:

Glasnost http://broadband.mpi-sws.mpg.de/transparency/bttest.php

Is BitTorrent traffic on a well-known BitTorrent port (6881) throttled?
Completed BitTorrent and TCP transfers using the BitTorrent port 6881:
Conclusion: No rate limiting

Is BitTorrent traffic on a non-standard BitTorrent port (10009) throttled?
Completed BitTorrent and TCP transfers using the non-BitTorrent port 10009:
Conclusion: No rate limiting

Is TCP traffic on a well-known BitTorrent port (6881) throttled?
Comparing TCP transfers using the well-know BitTorrent port 6881 and the non-BitTorrent port
Conclusion: No rate limiting

Speed Tests:

U: 27.31 KBps D: 218.48 Kbps

Your connection is: 260 Kbps or 0.3 Mbps
You uploaded at: 32 kB/s
You are running: 5 times faster than 56K and can upload 1 megabyte in 32 second(s) 
Member Ident:Username:Guest CompID:7621557682340
Test Time:: 2010/01/25 - 3:11am
Test Browser and OS info: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; AskTB5.5)
Test ID: M1ZQHTC5A (if this is a screenshot go to testmy.net to see if this is fake)
Diagnosis ^info^: Awesome! 20% + : 104.72 % faster than the average for host (net.ae) 
This was tested from a 579 kB file and took 18.234 seconds to complete 

:::.. Upload Stats ..:::
Upload Connection is:: 260 Kbps about 0.3 Mbps (tested with 579 kB)
Upload Speed is:: 32 kB/s
Tested From:: http://testmy.net/ (Main)
Test Time:: 2010/01/25 - 3:11am 
Bottom Line:: 5X faster than 56K 1MB Upload in 32 sec 
Tested from a 579 kB file and took 18.234 seconds to complete
Upload Diagnosis:: Awesome! 20% + : 104.72 % faster than the average for host (net.ae) 
U-Validation Link:: http://testmy.net/stats/id-M1ZQHTC5A
User Agent:: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; AskTB5.5) [!]

As per "How to report a bug" http://forum.utorrent.com/viewtopic.php?id=29748

HijackThis log:

Logfile of Trend Micro HijackThis v2.0.3 (BETA)
Scan saved at 2:58:16 PM, on 25/Jan/2010
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v8.00 (8.00.6001.18702)
Boot mode: Normal

Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\svchost.exe
D:\Program Files\Symantec\Symantec Endpoint Protection\Smc.exe
D:\Program Files\Common Files\Symantec Shared\ccSvcHst.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
D:\Program Files\Symantec\LiveUpdate\AluSchedulerSvc.exe
D:\Program Files\Java\jre6\bin\jqs.exe
C:\WINDOWS\system32\nvsvc32.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\RUNDLL32.EXE
C:\WINDOWS\system32\rundll32.exe
D:\Program Files\Adobe\Acrobat 8.0\Acrobat\Acrotray.exe
D:\Program Files\Common Files\Symantec Shared\ccApp.exe
D:\Program Files\Hewlett-Packard\CLJ1500\Toolbox\HPPOUMUI.exe
D:\Program Files\Symantec\Symantec Endpoint Protection\Rtvscan.exe
C:\WINDOWS\system32\ctfmon.exe
D:\Program Files\Common Files\InstallShield\UpdateService\ISUSPM.exe
D:\Program Files\Hewlett-Packard\CLJ1500\Toolbox\HPPOUMUI.EXE
D:\Program Files\Yahoo!\Messenger\YahooMessenger.exe
D:\Program Files\Windows Live\Messenger\msnmsgr.exe
D:\Program Files\Symantec\Symantec Endpoint Protection\SmcGui.exe
D:\Program Files\Windows Live\Contacts\wlcomm.exe
D:\Program Files\Common Files\Macrovision Shared\FLEXnet Publisher\FNPLicensingService.exe
D:\Program Files\Advanced\Ent\utor\uTorrent.exe
D:\Program Files\HijackThis\TrendMicro\HiJackThis\HiJackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = about:blank
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://go.microsoft.com/fwlink/?LinkId=54896
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyServer = proxy1.emirates.net.ae:8080
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = 70.38.46.108;202.46.200.213;local;202.46.200.213;*.local
O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - D:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: Browser Defender BHO - {2A0F3D1B-0909-4FF4-B272-609CCE6054E7} - D:\Program Files\Spyware Doctor\BDT\PCTBrowserDefender.dll
O2 - BHO: Java(tm) Plug-In SSV Helper - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - D:\Program Files\Java\jre6\bin\ssv.dll
O2 - BHO: Windows Live Sign-in Helper - {9030D464-4C02-4ABF-8ECC-5164760863C6} - D:\Program Files\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: (no name) - {A5366673-E8CA-11D3-9CD9-0090271D075B} - (no file)
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - D:\Program Files\Java\jre6\bin\jp2ssv.dll
O2 - BHO: JQSIEStartDetectorImpl - {E7E6F031-17CE-4C07-BC86-EABFE594F69C} - D:\Program Files\Java\jre6\lib\deploy\jqs\ie\jqs_plugin.dll
O3 - Toolbar: FlashGet Bar - {E0E899AB-F487-11D5-8D29-0050BA6940E3} - D:\PROGRA~1\Advanced\Utils\FlashGet\fgiebar.dll
O3 - Toolbar: PC Tools Browser Guard - {472734EA-242A-422B-ADF8-83D1E48CC825} - D:\Program Files\Spyware Doctor\BDT\PCTBrowserDefender.dll
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\WINDOWS\system32\NvMcTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [Acrobat Assistant 8.0] "D:\Program Files\Adobe\Acrobat 8.0\Acrobat\Acrotray.exe"
O4 - HKLM\..\Run: [ccApp] "D:\Program Files\Common Files\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [HPHUPD08] D:\Program Files\HP\Digital Imaging\{33D6CC28-9F75-4d1b-A11D-98895B3A3729}\hphupd08.exe
O4 - HKLM\..\Run: [Status Monitor CLJ1500] D:\Program Files\Hewlett-Packard\CLJ1500\\Toolbox\HPPOUMUI.exe
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [ISUSPM] "D:\Program Files\Common Files\InstallShield\UpdateService\ISUSPM.exe" -scheduler
O4 - HKCU\..\Run: [Messenger (Yahoo!)] "D:\Program Files\Yahoo!\Messenger\YahooMessenger.exe" -quiet
O4 - HKCU\..\Run: [msnmsgr] "D:\Program Files\Windows Live\Messenger\msnmsgr.exe" /background
O4 - Global Startup: Adobe Acrobat Speed Launcher.lnk = ?
O4 - Global User Startup: Adobe Acrobat Speed Launcher.lnk = ?
O6 - HKCU\Software\Policies\Microsoft\Internet Explorer\Control Panel present
O8 - Extra context menu item: Download All by FlashGet - D:\Program Files\Advanced\Utils\FlashGet\jc_all.htm
O8 - Extra context menu item: Download All Files by HiDownload - D:\Program Files\Advanced\Utils\HiDownload\HDGetAll.htm
O8 - Extra context menu item: Download by HiDownload - D:\Program Files\Advanced\Utils\HiDownload\HDGet.htm
O8 - Extra context menu item: Download using FlashGet - D:\Program Files\Advanced\Utils\FlashGet\jc_link.htm
O8 - Extra context menu item: E&xport to Microsoft Excel - res://D:\PROGRA~1\MICROS~1\Office12\EXCEL.EXE/3000
O8 - Extra context menu item: Open PDF in Word - res://D:\Program Files\ScanSoft\OmniPagePro14.0\PdfCnv\IEShellExt.dll /100
O8 - Extra context menu item: Sothink SWF Catcher - D:\Program Files\Common Files\SourceTec\SWF Catcher\InternetExplorer.htm
O9 - Extra button: Trace - {04849C74-016E-4a43-8AA5-1F01DE57F4A1} - C:\WINDOWS\system32\SHDOCVW.dll
O9 - Extra 'Tools' menuitem: VisualRoute Trace - {04849C74-016E-4a43-8AA5-1F01DE57F4A1} - C:\WINDOWS\system32\SHDOCVW.dll
O9 - Extra button: Bonjour - {7F9DB11C-E358-4ca6-A83D-ACC663939424} - D:\Program Files\Bonjour\ExplorerPlugin.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - D:\PROGRA~1\MICROS~1\OFFICE11\REFIEBAR.DLL
O9 - Extra button: FlashGet - {D6E814A0-E0C5-11d4-8D29-0050BA6940E3} - D:\PROGRA~1\Advanced\Utils\FlashGet\flashget.exe
O9 - Extra 'Tools' menuitem: &FlashGet - {D6E814A0-E0C5-11d4-8D29-0050BA6940E3} - D:\PROGRA~1\Advanced\Utils\FlashGet\flashget.exe
O9 - Extra button: Sothink SWF Catcher - {E19ADC6E-3909-43E4-9A89-B7B676377EE3} - D:\Program Files\Common Files\SourceTec\SWF Catcher\InternetExplorer.htm
O9 - Extra 'Tools' menuitem: Sothink SWF Catcher - {E19ADC6E-3909-43E4-9A89-B7B676377EE3} - D:\Program Files\Common Files\SourceTec\SWF Catcher\InternetExplorer.htm
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - D:\Program Files\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - D:\Program Files\Messenger\msmsgs.exe
O9 - Extra button: HiDownload - {F4FBA929-A891-492C-A0F6-5C79CC4F1742} - D:\Program Files\Advanced\Utils\HiDownload\hidownload.exe (HKCU)
O15 - Trusted Zone: http://www.msi.com.tw
O16 - DPF: {44990301-3C9D-426D-81DF-AAB636FA4345} (Symantec Script Runner Class) - https://www-secure.symantec.com/techsupp/asa/ss/sa/sa_cabs/tgctlsr.cab
O16 - DPF: {4788DE0A-3552-49EA-AC8C-233DA52523B9} (AxLoaderPassword Class) - http://www.blackberry.com/devicesoftware/AxLoader.cab
O16 - DPF: {5AE58FCF-6F6A-49B2-B064-02492C66E3F4} (MUCatalogWebControl Class) - http://catalog.update.microsoft.com/v7/site/ClientControl/en/x86/MuCatalogWebControl.cab?1192005993406
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/windowsupdate/v6/V5Controls/en/x86/client/wuweb_site.cab?1162270028234
O16 - DPF: {8167C273-DF59-4416-B647-C8BB2C7EE83E} - http://liveupdate.msi.com.tw/autobios/LOnline/install.cab
O16 - DPF: {D821DC4A-0814-435E-9820-661C543A4679} (CRLDownloadWrapper Class) - http://drmlicense.one.microsoft.com/crlupdate/en/crlocx.ocx
O17 - HKLM\System\CCS\Services\Tcpip\..\{E940454E-64AF-488A-A7C6-31D7BDDEAA5E}: NameServer = 213.42.20.20,195.229.241.222
O22 - SharedTaskScheduler: Browseui preloader - {438755C2-A8BA-11D1-B96B-00A0C90312E1} - C:\WINDOWS\system32\browseui.dll
O23 - Service: Adobe LM Service - Adobe Systems - D:\Program Files\Common Files\Adobe Systems Shared\Service\Adobelmsvc.exe
O23 - Service: Automatic LiveUpdate Scheduler - Symantec Corporation - D:\Program Files\Symantec\LiveUpdate\AluSchedulerSvc.exe
O23 - Service: Browser Defender Update Service - Unknown owner - D:\Program Files\Spyware Doctor\BDT\BDTUpdateService.exe
O23 - Service: Symantec Event Manager (ccEvtMgr) - Symantec Corporation - D:\Program Files\Common Files\Symantec Shared\ccSvcHst.exe
O23 - Service: Symantec Settings Manager (ccSetMgr) - Symantec Corporation - D:\Program Files\Common Files\Symantec Shared\ccSvcHst.exe
O23 - Service: FLEXnet Licensing Service - Macrovision Europe Ltd. - D:\Program Files\Common Files\Macrovision Shared\FLEXnet Publisher\FNPLicensingService.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - D:\Program Files\Common Files\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: Java Quick Starter (JavaQuickStarterService) - Sun Microsystems, Inc. - D:\Program Files\Java\jre6\bin\jqs.exe
O23 - Service: LiveUpdate - Symantec Corporation - D:\Program Files\Symantec\LiveUpdate\LuComServer_3_4.EXE
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: Symantec Management Client (SmcService) - Symantec Corporation - D:\Program Files\Symantec\Symantec Endpoint Protection\Smc.exe
O23 - Service: Symantec Endpoint Protection (Symantec AntiVirus) - Symantec Corporation - D:\Program Files\Symantec\Symantec Endpoint Protection\Rtvscan.exe
O24 - Desktop Component 1: (no name) - D:\Documents and Settings\Administrator\My Documents\My Pictures\WPaper\Test\01.htm

--
End of file - 10309 bytes

Process explorer log with DLL list (Ctrl+d) for the uTorrent.exe process:

Process    PID    CPU    Description    Company Name
System Idle Process    0    77.61        
 Interrupts    n/a        Hardware Interrupts    
 DPCs    n/a        Deferred Procedure Calls    
 System    4    2.24        
  smss.exe    1112        Windows NT Session Manager    Microsoft Corporation
   csrss.exe    1168        Client Server Runtime Process    Microsoft Corporation
   winlogon.exe    1192        Windows NT Logon Application    Microsoft Corporation
    services.exe    1236    5.97    Services and Controller app    Microsoft Corporation
     svchost.exe    1424        Generic Host Process for Win32 Services    Microsoft Corporation
      wmiprvse.exe    2396        WMI    Microsoft Corporation
      wlcomm.exe    2684        Windows Live Communications Platform    Microsoft Corporation
     svchost.exe    1528        Generic Host Process for Win32 Services    Microsoft Corporation
     svchost.exe    1644        Generic Host Process for Win32 Services    Microsoft Corporation
     svchost.exe    1680        Generic Host Process for Win32 Services    Microsoft Corporation
     Smc.exe    1852    2.99    Symantec CMC Smc    Symantec Corporation
      SmcGui.exe    3308        Symantec CMC SmcGui    Symantec Corporation
     svchost.exe    1952        Generic Host Process for Win32 Services    Microsoft Corporation
     svchost.exe    2024        Generic Host Process for Win32 Services    Microsoft Corporation
     ccSvcHst.exe    224        Symantec Service Framework    Symantec Corporation
     spoolsv.exe    732        Spooler SubSystem App    Microsoft Corporation
      HPPOUMUI.exe    320        Language Monitor UI    Oak Technology, Inc.
     svchost.exe    1584        Generic Host Process for Win32 Services    Microsoft Corporation
     AluSchedulerSvc.exe    1908        Automatic LiveUpdate Scheduler Service    Symantec Corporation
     jqs.exe    360    4.48    Java(TM) Quick Starter Service    Sun Microsystems, Inc.
     nvsvc32.exe    408        NVIDIA Driver Helper Service, Version 163.75    NVIDIA Corporation
     svchost.exe    1132    2.24    Generic Host Process for Win32 Services    Microsoft Corporation
     Rtvscan.exe    1664        Symantec AntiVirus    Symantec Corporation
     alg.exe    3176        Application Layer Gateway Service    Microsoft Corporation
     FNPLicensingService.exe    3572        Activation Licensing Service    Macrovision Europe Ltd.
    lsass.exe    1248    0.75    LSA Shell (Export Version)    Microsoft Corporation
explorer.exe    980        Windows Explorer    Microsoft Corporation
 rundll32.exe    1320        Run a DLL as an App    Microsoft Corporation
 acrotray.exe    1380        AcroTray    Adobe Systems Inc.
 ccApp.exe    1448        Symantec User Session    Symantec Corporation
 HPPOUMUI.exe    1636        Language Monitor UI    Oak Technology, Inc.
 ctfmon.exe    1716        CTF Loader    Microsoft Corporation
 ISUSPM.exe    312        Macrovision Software Manager    Macrovision Corporation
 YahooMessenger.exe    872        Yahoo! Messenger    Yahoo! Inc.
 msnmsgr.exe    1148        Windows Live Messenger    Microsoft Corporation
 uTorrent.exe    2380    2.24    µTorrent    BitTorrent, Inc.
 notepad.exe    3744        Notepad    Microsoft Corporation
 iexplore.exe    308        Internet Explorer    Microsoft Corporation
  iexplore.exe    2916        Internet Explorer    Microsoft Corporation
  iexplore.exe    1748        Internet Explorer    Microsoft Corporation
  iexplore.exe    2512        Internet Explorer    Microsoft Corporation
  iexplore.exe    1996        Internet Explorer    Microsoft Corporation
 notepad.exe    2788        Notepad    Microsoft Corporation
 notepad.exe    3564        Notepad    Microsoft Corporation
 notepad.exe    3292        Notepad    Microsoft Corporation
 notepad.exe    3328        Notepad    Microsoft Corporation
 notepad.exe    3784        Notepad    Microsoft Corporation
 procexp.exe    464    1.49    Sysinternals Process Explorer    Sysinternals - www.sysinternals.com
rundll32.exe    156        Run a DLL as an App    Microsoft Corporation

Process: uTorrent.exe Pid: 2380

Name    Description    Company Name    Version
ACTIVEDS.dll    ADs Router Layer DLL    Microsoft Corporation    5.1.2600.5512
adsldpc.dll    ADs LDAP Provider C DLL    Microsoft Corporation    5.1.2600.5512
ADVAPI32.dll    Advanced Windows 32 Base API    Microsoft Corporation    5.1.2600.5755
ATL.DLL    ATL Module for Windows XP (Unicode)    Microsoft Corporation    3.5.2284.2
c_936.nls            
COMCTL32.dll    User Experience Controls Library    Microsoft Corporation    6.0.2900.5512
comdlg32.dll    Common Dialogs DLL    Microsoft Corporation    6.0.2900.5512
CRYPT32.dll    Crypto API32    Microsoft Corporation    5.131.2600.5512
ctype.nls            
DnsApi.dll    DNS Client API DLL    Microsoft Corporation    5.1.2600.5625
DrvTrNTl.dll            
DrvTrNTm.dll    Wave sound driver for the Total Recorder (Standard Edition)    High Criteria inc.    3.4.0.1
GDI32.dll    GDI Client DLL    Microsoft Corporation    5.1.2600.5698
hnetcfg.dll    Home Networking Configuration Manager    Microsoft Corporation    5.1.2600.5512
IMM32.DLL    Windows XP IMM32 API Client DLL    Microsoft Corporation    5.1.2600.5512
Iphlpapi.dll    IP Helper API    Microsoft Corporation    5.1.2600.5512
kernel32.dll    Windows NT BASE API Client DLL    Microsoft Corporation    5.1.2600.5781
locale.nls            
LPK.DLL    Language Pack    Microsoft Corporation    5.1.2600.5512
mdnsNSP.dll    Bonjour Namespace Provider    Apple Inc.    1.0.6.2
MPRAPI.dll    Windows NT MP Router Administration DLL    Microsoft Corporation    5.1.2600.5512
MSASN1.dll    ASN.1 Runtime APIs    Microsoft Corporation    5.1.2600.5875
MSCTF.dll    MSCTF Server DLL    Microsoft Corporation    5.1.2600.5512
msctfime.ime    Microsoft Text Frame Work Service IME    Microsoft Corporation    5.1.2600.5768
msvcrt.dll    Windows NT CRT DLL    Microsoft Corporation    7.0.2600.5512
mswsock.dll    Microsoft Windows Sockets 2.0 Service Provider    Microsoft Corporation    5.1.2600.5625
netapi32.dll    Net Win32 API DLL    Microsoft Corporation    5.1.2600.5694
ntdll.dll    NT Layer DLL    Microsoft Corporation    5.1.2600.5755
NTMARTA.DLL    Windows NT MARTA provider    Microsoft Corporation    5.1.2600.5512
nview.dll    NVIDIA nView Desktop and Window Manager 111.22     NVIDIA Corporation    6.14.10.11122
ole32.dll    Microsoft OLE for Windows    Microsoft Corporation    5.1.2600.5512
oleaut32.dll        Microsoft Corporation    5.1.2600.5512
PCTLsp.dll    PC Tools Layered Service Provider    PC Tools Research Pty Ltd.    1.0.101.0
PSAPI.DLL    Process Status Helper    Microsoft Corporation    5.1.2600.5512
rasadhlp.dll    Remote Access AutoDial Helper    Microsoft Corporation    5.1.2600.5512
RPCRT4.dll    Remote Procedure Call Runtime    Microsoft Corporation    5.1.2600.5795
rsaenh.dll    Microsoft Enhanced Cryptographic Provider    Microsoft Corporation    5.1.2600.5507
rtutils.dll    Routing Utilities    Microsoft Corporation    5.1.2600.5512
SAMLIB.dll    SAM Library DLL    Microsoft Corporation    5.1.2600.5512
Secur32.dll    Security Support Provider Interface    Microsoft Corporation    5.1.2600.5834
SETUPAPI.dll    Windows Setup API    Microsoft Corporation    5.1.2600.5512
SHELL32.dll    Windows Shell Common Dll    Microsoft Corporation    6.0.2900.5622
shfolder.dll    Shell Folder Service    Microsoft Corporation    6.0.2900.5512
SHLWAPI.dll    Shell Light-weight Utility Library    Microsoft Corporation    6.0.2900.5512
sortkey.nls            
sorttbls.nls            
unicode.nls            
USER32.dll    Windows XP USER API Client DLL    Microsoft Corporation    5.1.2600.5512
USERENV.dll    Userenv    Microsoft Corporation    5.1.2600.5512
USP10.dll    Uniscribe Unicode script processor    Microsoft Corporation    1.420.2600.5512
uTorrent.exe    µTorrent    BitTorrent, Inc.    1.8.5.17414
UxTheme.dll    Microsoft UxTheme Library    Microsoft Corporation    6.0.2900.5512
VERSION.dll    Version Checking and File Installation Libraries    Microsoft Corporation    5.1.2600.5512
WINMM.dll    MCI API DLL    Microsoft Corporation    5.1.2600.5512
WLDAP32.dll    Win32 LDAP API DLL    Microsoft Corporation    5.1.2600.5512
WS2_32.dll    Windows Socket 2.0 32-Bit DLL    Microsoft Corporation    5.1.2600.5512
WS2HELP.dll    Windows Socket 2.0 Helper for Windows NT    Microsoft Corporation    5.1.2600.5512
wshtcpip.dll    Windows Sockets Helper DLL    Microsoft Corporation    5.1.2600.5512

[Switeck]

Here's the list of the non-Microsoft DLLs I spotted under utorrent.exe:

DrvTrNTl.dll

DrvTrNTm.dll Wave sound driver for the Total Recorder (Standard Edition) High Criteria inc. 3.4.0.1

mdnsNSP.dll Bonjour Namespace Provider Apple Inc. 1.0.6.2

nview.dll NVIDIA nView Desktop and Window Manager 111.22 NVIDIA Corporation 6.14.10.11122

PCTLsp.dll PC Tools Layered Service Provider PC Tools Research Pty Ltd. 1.0.101.0

Often, non-Microsoft DLLs are to blame for uTorrent problems.

While I don't know why your sound drivers would even be there...I don't know if that's a problem.

Bonjour should be ok.

Nvidia should be ok.

...But the PC Tools Layered Service Provider seems like something to remove and retest uTorrent.

If that doesn't help...

Did you test uTorrent with DHT, Resolve IPs, uTP, and Teredo disabled?

[GTHK]

Extra torrents are started if speeds in running ones are low enough. What's the exact wording of the rules in the firewall? Any port outgoing and your listening port incoming is the appropriate rule.

You have to reboot your router to get the connection working? Does your connection fail faster if you raise the number of connections and run some big torrents like Ubuntu and OpenOffice?

[daty]

Switeck & GTHK, that was a fast response. Thank you.

I apologize for my slow response, I wanted to test out uT with what you guys advised.

Sadly the same problem recurs.

I have disabled below services

PC Tools Auxiliary Service
PC Tools Security Service
PC Tools ThreatFire
Total Recorder TotRecSched

I have unchecked Resolve IPs in the Peers tab (I don't require flags to be displayed next to the peer)

I never installed IPv6/Teredo support

As for Micro Transport Protocol (uTP)

bt.transp_disposition: 13 (current, default)

Since this option is a bitfield, I presume the below combination is true:

1 allows µTorrent to attempt outgoing TCP connections

4 allows µTorrent to accept incoming TCP connections

8 allows µTorrent to accept incoming uTP connections

i.e. µTorrent is not allowed to attempt outgoing uTP connections.

Do I need to change bt.transp_disposition: 5 or is 13 good enough?

Now, about DHT and PEX:

DHT Network is enabled

DHT for new torrents is enabled

Local Peer Discovery is enabled

Peer Exchange is enabled

I am not sure if disabling DHT will help. As mentioned uT works fantastic with heavily seeded torrents for more than 15 hours.

And I thought uT is geared more towards DHT rather than trackers.

There are no problems with big torrents (~20 GB) as long as there are about 10 seeds or more.

I have never tried Global maximum number of connections beyond 90, since the bandwidth gets correctly maxed out when a properly seeded torrent is active.

The problem starts when there are about 3 or 4 torrents with 1 or 2 seeds each.

And I have to hard reboot my router to get the connection working. (the web interface of the router will not display in the browser when uT freezes the connection)

If you guys think that disabling DHT is the way to go, I will try that.

SEP 11.0.5002.333 Firewall:

Allow <path>\uTorrent.exe Version 1.8.5.17414 traffic on all hosts, all network adapters, all IP protocols, both Traffic directions.
Allow TCP Local <my port number>, Remote <port left blank> traffic for uTorrent.exe Version 1.8.5.17414 on all hosts, all network adapters, TCP protocol, both Traffic directions.
Allow UDP Local <my port number>, Remote <port left blank> traffic for uTorrent.exe Version 1.8.5.17414 on all hosts, all network adapters, UDP protocol, both Traffic directions.

Checking port 57608 on 83.110.157.x#x

OK! Port 57608 is open and accepting connections.

You will be able to receive incoming BitTorrent connections.

Correct me if I am wrong but doesn't that mean I do not have to tinker around with the firewall and port forwarding?

I apologize if my replies are long and winding, I try to give as much info as possible to avoid multiple round-back posts.

Thank you immensely for you sincere support.

[Switeck]

Just test with uTP set to disabled for a day.

DHT doesn't really do much on most torrents...you'd have to have trackers down for hours for it to matter. But weak networking can have trouble with DHT...so likewise test with DHT disabled.

[daty]

I have completely uninstalled PC Tools Spyware Doctor, ran uT with uTP disabled (bt.transp_disposition: 5) and DHT disabled. It downloaded about 257 MB and crashed the connection and router.

[Firon]

So, the solution is clearly to buy a better router if it's crashing under the load of a single torrent. That's just pathetic. Some routers are just really trashy and not worth the power they suck up.

Even my crap 2Wire can handle more load than that (stuck with it...)

[daty]

OK, I will replace the router.

I went through http://www.smallnetbuilder.com/component/option,com_chart/Itemid,189/chart,124/

as per http://forum.utorrent.com/viewtopic.php?id=58404

Could someone recommend the best ADSL modem and Router for me (budget no limit).

uTorrent Performance is the only criteria. I do not need Wireless, I should be able to disable Wireless if it has.

Should I consider "Maximum Simultaneous Connections" as the main benchmark?

Thank you for your much needed support.

[Switeck]

I simply don't know about ADSL modems -- I'm on cable.

There is more than just max connections...though if a router fails to get to 200 on that test, it's already a stinker (with default firmware). A router may fail to properly support UPnP, VPN, or something else...and not be mentioned in the test.