Verbindung bricht ab, Neu-Einwahl erfordert Neustart

hallo leute,

habe seit 2 wochen das problem, dass ich die internetverbindung meist nach 5 - 20 minuten verliere (selten mal 50 minuten)

eine wieder einwahl ist nicht möglich - nur nach neustart

bin umgezogen - es gab ein paar probleme (telefondose - telekomtechniker - verschaltung...) dann lief es ca 4 tage problemlos

habe alice funflat 2000 auf analogmodem von siemens (kein router/kein wlan)

meine bisherigen problemlöseversuche:

- alice einwahl software nocheinmal drüberinstalliert
- spybot und 2 verschiede virenscanner durchlaufen lassen (kaspersky/avira)
- verschiedene netzwerkkabel getestet
- gleiches problem auf altem modem (anderes modell)
- gleiches problem auf netzwerkkarte und onboard lan
- tweak tester auf Tweaking for speed - dslreports.com :

1. Your Tweakable Settings
Receive Window (RWIN): 34000
Window Scaling: off
Path MTU Discovery: ON
RFC1323 Window Scaling: OFF
RFC1323 Time Stamping: OFF
Selective Acks: ON
MSS requested: 1360
TTL: unknown
TTL remaining: 54
TOS flags: none set

2. Test Download
Actual data bytes sent: 1024001
Actual data packets: 754
Max packet sent (MTU): 1400
Max packet recd (MTU): 1400
Retransmitted packets: 0
sacks you sent: 0
pushed data pkts: 48
data transmit time: 4.691 secs
our max idletime: 274.3 ms
transfer rate: 199623 bytes/sec
transfer rate: 1596 kbits/sec
transfer efficiency: 100%

4. Notes and Recommendations Check FAQ on MTU for XP (FAQ #2252)
RWIN is in range
Looking good

Observations:
Good data stream (no/few rexmits)

- hijackthis log:

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 14:46:09, on 08.12.2008
Platform: Windows XP SP2, v.2096 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2096)
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\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\SOUNDMAN.EXE
C:\Programme\Java\jre1.6.0_03\bin\jusched.exe
C:\Programme\QuickTime\qttask.exe
C:\Programme\COMODO\COMODO Internet Security\cfp.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Programme\Alice Software\AliceEinwahl.exe
C:\Programme\COMODO\COMODO Internet Security\cmdagent.exe
C:\Programme\Google\Common\Google Updater\GoogleUpdaterService.exe
C:\Programme\Canon\IJPLM\IJPLMSVC.EXE
C:\WINDOWS\system32\HPZipm12.exe
c:\Programme\Gemeinsame Dateien\Protexis\License Service\PsiService_2.exe
C:\Programme\ArchiCrypt Stealth 4\IJStealth4Svc.exe
C:\WINDOWS\system32\svchost.exe
C:\Programme\Mozilla Firefox\firefox.exe
C:\Programme\Trend Micro\HijackThis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = Google
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = ALICE - Willkommen
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = ALICE - Willkommen
R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = Powerful screen capture software - HyperSnap-DX
O2 - BHO: btorbit.com - {000123B4-9B42-4900-B3F7-F4B073EFC214} - C:\Programme\Orbitdownloader\orbitcth.dll
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Programme\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: Spybot-S&D IE Protection - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\Spybot - Search & Destroy\SDHelper.dll
O2 - BHO: Groove GFS Browser Helper - {72853161-30C5-4D22-B7F9-0BBC1D38A37E} - C:\PROGRA~1\MICROS~2\Office12\GRA8E1~1.DLL
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Programme\Java\jre1.6.0_03\bin\ssv.dll
O2 - BHO: AcroIEToolbarHelper Class - {AE7CD045-E861-484f-8273-0445EE161910} - C:\Programme\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll
O2 - BHO: Google Toolbar Notifier BHO - {AF69DE43-7D58-4638-B6FA-CE66B5AD205D} - C:\Programme\Google\GoogleToolbarNotifier\4.1.805. 4472\swg.dll
O2 - BHO: (no name) - {BBE59AF5-EE22-4A3A-AB26-3F774D1B4216} - C:\Programme\FolderBox\FolderBox.dll
O2 - BHO: Burn4Free Toolbar Helper - {D187A56B-A33F-4CBE-9D77-459FC0BAE012} - C:\Programme\Burn4Free Toolbar\v3.3.0.1\Burn4Free_Toolbar.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\system32\msdxm.ocx
O3 - Toolbar: Burn4Free Toolbar - {4F11ACBB-393F-4C86-A214-FF3D0D155CC3} - C:\Programme\Burn4Free Toolbar\v3.3.0.1\Burn4Free_Toolbar.dll
O3 - Toolbar: Adobe PDF - {47833539-D0C5-4125-9FA8-0819E2EAAC93} - C:\Programme\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll
O3 - Toolbar: Grab Pro - {C55BBCD6-41AD-48AD-9953-3609C48EACC7} - C:\Programme\Orbitdownloader\GrabPro.dll
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Programme\Java\jre1.6.0_03\bin\jusched.exe "
O4 - HKLM\..\Run: [ISUSPM Startup] "C:\Programme\Gemeinsame Dateien\InstallShield\UpdateService\ISUSPM.exe" -startup
O4 - HKLM\..\Run: [ISUSScheduler] "C:\Programme\Gemeinsame Dateien\InstallShield\UpdateService\issch.exe" -start
O4 - HKLM\..\Run: [ScanSoft OmniPage 16-reminder] "C:\Programme\ScanSoft\OmniPage16\Ereg\Ereg.ex e" -r "C:\Dokumente und Einstellungen\All Users\Anwendungsdaten\ScanSoft\OmniPage 16\Ereg\Ereg.ini"
O4 - HKLM\..\Run: [KernelFaultCheck] %systemroot%\system32\dumprep 0 -k
O4 - HKLM\..\Run: [QuickTime Task] "C:\Programme\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [COMODO Internet Security] "C:\Programme\COMODO\COMODO Internet Security\cfp.exe" -h
O4 - HKLM\..\RunOnce: [NSSInstallation] C:\WINDOWS\system32\Adobe\Shockwave 11\nssstub.exe /RunOnce
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [OpAgent] "OpAgent.exe" /agent
O4 - HKUS\S-1-5-19\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'LOKALER DIENST')
O4 - HKUS\S-1-5-20\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'NETZWERKDIENST')
O4 - HKUS\S-1-5-18\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'Default user')
O4 - Global Startup: Alice-Einwahl.lnk = ?
O8 - Extra context menu item: &Download by Orbit - res://C:\Programme\Orbitdownloader\orbitmxt.dll/201
O8 - Extra context menu item: &Grab video by Orbit - res://C:\Programme\Orbitdownloader\orbitmxt.dll/204
O8 - Extra context menu item: Convert link target to Adobe PDF - res://C:\Programme\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIECapture.html
O8 - Extra context menu item: Convert link target to existing PDF - res://C:\Programme\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIEAppend.html
O8 - Extra context menu item: Convert selected links to Adobe PDF - res://C:\Programme\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIECaptureSelLinks.html
O8 - Extra context menu item: Convert selected links to existing PDF - res://C:\Programme\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIEAppendSelLinks.html
O8 - Extra context menu item: Convert selection to Adobe PDF - res://C:\Programme\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIECapture.html
O8 - Extra context menu item: Convert selection to existing PDF - res://C:\Programme\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIEAppend.html
O8 - Extra context menu item: Convert to Adobe PDF - res://C:\Programme\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIECapture.html
O8 - Extra context menu item: Convert to existing PDF - res://C:\Programme\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIEAppend.html
O8 - Extra context menu item: Do&wnload selected by Orbit - res://C:\Programme\Orbitdownloader\orbitmxt.dll/203
O8 - Extra context menu item: Down&load all by Orbit - res://C:\Programme\Orbitdownloader\orbitmxt.dll/202
O8 - Extra context menu item: Nach Microsoft E&xel exportieren - res://C:\PROGRA~1\MICROS~2\Office12\EXCEL.EXE/3000
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Programme\Java\jre1.6.0_03\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Sun Java Konsole - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Programme\Java\jre1.6.0_03\bin\ssv.dll
O9 - Extra button: An OneNote senden - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~1\MICROS~2\Office12\ONBttnIE.dll
O9 - Extra 'Tools' menuitem: An OneNote s&enden - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~1\MICROS~2\Office12\ONBttnIE.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\Office12\REFIEBAR.DLL
O9 - Extra button: (no name) - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\PROGRA~1\Spybot - Search & Destroy\SDHelper.dll
O9 - Extra 'Tools' menuitem: Spybot - Search & Destroy Configuration - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\PROGRA~1\Spybot - Search & Destroy\SDHelper.dll
O16 - DPF: {6B75345B-AA36-438A-BBE6-4078B4C6984D} (HpProductDetection Class) - https://h20270.www2.hp.com/ediags/gmn...tDetection.cab
O16 - DPF: {6F15128C-E66A-490C-B848-5000B5ABEEAC} (HP Download Manager) - https://h20436.www2.hp.com/ediags/de...e/HPDEXAXO.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{B539304A-FCA1-4ACA-A869-F540EFC64D7F}: NameServer = 62.109.123.196 213.191.74.18
O18 - Protocol: grooveLocalGWS - {88FED34C-F0CA-4636-A375-3CB6248B04CD} - C:\PROGRA~1\MICROS~2\Office12\GR99D3~1.DLL
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~1\GEMEIN~1\Skype\SKYPE4~1.DLL
O20 - AppInit_DLLs: C:\WINDOWS\system32\guard32.dll
O23 - Service: COMODO Internet Security Helper Service (cmdAgent) - Unknown owner - C:\Programme\COMODO\COMODO Internet Security\cmdagent.exe
O23 - Service: Firebird Server - MAGIX Instance (FirebirdServerMAGIXInstance) - MAGIX® - C:\Programme\MAGIX\Common\Database\bin\fbserver.ex e
O23 - Service: FLEXnet Licensing Service - Macrovision Europe Ltd. - C:\Programme\Gemeinsame Dateien\Macrovision Shared\FLEXnet Publisher\FNPLicensingService.exe
O23 - Service: Google Updater Service (gusvc) - Google - C:\Programme\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Programme\Gemeinsame Dateien\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: PIXMA Extended Survey Program (IJPLMSVC) - Unknown owner - C:\Programme\Canon\IJPLM\IJPLMSVC.EXE
O23 - Service: iPodService - Apple Computer, Inc. - C:\Programme\iPod\bin\iPodService.exe
O23 - Service: Pml Driver HPZ12 - HP - C:\WINDOWS\system32\HPZipm12.exe
O23 - Service: Protexis Licensing V2 (PSI_SVC_2) - Protexis Inc. - c:\Programme\Gemeinsame Dateien\Protexis\License Service\PsiService_2.exe
O23 - Service: Remote Packet Capture Protocol v.0 (experimental) (rpcapd) - CACE Technologies - C:\Programme\WinPcap\rpcapd.exe
O23 - Service: Stealth Service Helper (StealthInjectorService) - Softwareentwicklung Remus - C:\Programme\ArchiCrypt Stealth 4\IJStealth4Svc.exe

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End of file - 9411 bytes

da ich also weder software noch hardware geändert habe - was kann das problem sein?
- kann sich eine datei zerschossen haben?
- irgendwelche einstellungen die sich wie auch immer verstellt haben können?