[SOLVED] Video stuttering when LAN Driver active

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Tomasch

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Sep 16, 2014
8
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4,510
I experience heavy video/audio stuttering when playing a video when streamed via LAN NOT when streaming via WLAN (youtube, or other sources where video is streamed). According to my observations the stuttering only happens when the LAN network driver is somehow busy, which means preloading the video. As soon as the video is chached/loaded, the stuttering disappears. So in my opinion the LAN driver is obviously the problem. I recently updated the LAN driver due to suddenly occuring BSOD. The update fixed the BSODs but now the stuttering appeared. I already tried to switch to other versions of the driver or even use just the Windows driver, but the problem doesn't disappear.

With updating the LAN driver I also updated all the other drivers (BIOS, Soundcard, PCI, Chipset, etc.) because my system was a little outdated. Everything works fine and in games (like Borderlands) everything works like a charm. Just when the LAN driver is busy the CPU has a 90%-100% load. The process causing the CPU load is in these cases not Chrome, it's the System process according to the task manager. Another hint that the driver should be responsible.

The Graphic card is up to date and running on the latest beta driver from AMD (tried the normal driver too, no difference).

LatencyMon showed me that ndis.sys is causing excessive latency.

[Edit:] Firewall and Virusscanner is AVG, which should be irrelevant anyway since everything works with WLAN

My LAN card:
PCI-E-Gigabit-Ethernet-Controller Qualcomm Atheros AR8151(NDIS 6.30)
Current driver: 2.1.0.16 from Microsoft
Tried 2.1.0.21 from Atheros too.

My System:
Acer Aspire 7745G
Windows 8.1 64x
Intel Core i5
Mobility Radeon HD 5850
4 GB Ram
SanDisk 128GB SSD
 
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T

Tomasch

Reputable
Sep 16, 2014
8
0
4,510
Hm, I don't know if it's really malware/virus related, but here the logs:

Malwarebytes Scan:
Malwarebytes Anti-Malware
www.malwarebytes.org

Scan Date: 17.09.2014
Scan Time: 10:27:26
Logfile:
Administrator: Yes

Version: 2.00.2.1012
Malware Database: v2014.09.17.02
Rootkit Database: v2014.09.15.01
License: Free
Malware Protection: Disabled
Malicious Website Protection: Disabled
Self-protection: Disabled

OS: Windows 8.1
CPU: x64
File System: NTFS
User: Thomas

Scan Type: Threat Scan
Result: Completed
Objects Scanned: 318157
Time Elapsed: 16 min, 32 sec

Memory: Enabled
Startup: Enabled
Filesystem: Enabled
Archives: Enabled
Rootkits: Disabled
Heuristics: Enabled
PUP: Enabled
PUM: Enabled

Processes: 0
(No malicious items detected)

Modules: 0
(No malicious items detected)

Registry Keys: 0
(No malicious items detected)

Registry Values: 0
(No malicious items detected)

Registry Data: 0
(No malicious items detected)

Folders: 0
(No malicious items detected)

Files: 1
PUP.Optional.Conduit.A, C:\Users\Thomas\AppData\Local\Google\Chrome\User Data\Default\Preferences, Good: (), Bad: ( "homepage": "http://search.conduit.com/?gd=&ctid=CT3321902&octid=EB_ORIGINAL_CTID&ISID=ISID_ID&SearchSource=55&CUI=&UM=5&UP=SP8B47BF2A-B5C5-4703-935B-CEA740C5B877&SSPV=",), ,[397d4ba3c2b964d2ff70e351a65f4cb4]

Physical Sectors: 0
(No malicious items detected)


(end)

ADWCleaner Scan: All the driverScanner stuff is from the updates..
# AdwCleaner v3.310 - Bericht erstellt am 17/09/2014 um 10:46:50
# Aktualisiert 12/09/2014 von Xplode
# Betriebssystem : Windows 8.1 Pro (64 bits)
# Benutzername : Thomas - THOMAS
# Gestartet von : C:\Users\Thomas\Desktop\adwcleaner_3.310.exe
# Option : Suchen

***** [ Dienste ] *****


***** [ Dateien / Ordner ] *****

Ordner Gefunden : C:\Program Files (x86)\Uniblue
Ordner Gefunden : C:\Program Files (x86)\Uniblue\DriverScanner
Ordner Gefunden : C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Uniblue
Ordner Gefunden : C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Uniblue\DriverScanner
Ordner Gefunden : C:\Users\Thomas\AppData\Local\eSupport.com

***** [ Tasks ] *****


***** [ Verknüpfungen ] *****


***** [ Registrierungsdatenbank ] *****

Schlüssel Gefunden : HKCU\Software\eSupport.com
Schlüssel Gefunden : [x64] HKCU\Software\eSupport.com
Schlüssel Gefunden : HKLM\SOFTWARE\Classes\driverscanner
Schlüssel Gefunden : HKLM\SOFTWARE\Uniblue
Schlüssel Gefunden : HKLM\SOFTWARE\Uniblue\DriverScanner

***** [ Browser ] *****

-\\ Internet Explorer v11.0.9600.17278


-\\ Mozilla Firefox v30.0 (de)

[ Datei : C:\Users\Thomas\AppData\Roaming\Mozilla\Firefox\Profiles\8qg6iswm.default\prefs.js ]


-\\ Google Chrome v37.0.2062.120

[ Datei : C:\Users\Thomas\AppData\Local\Google\Chrome\User Data\Default\preferences ]

Gefunden [Homepage] : hxxp://search.conduit.com/?gd=&ctid=CT3321902&octid=EB_ORIGINAL_CTID&ISID=ISID_ID&SearchSource=55&CUI=&UM=5&UP=SP8B47BF2A-B5C5-4703-935B-CEA740C5B877&SSPV=

*************************

AdwCleaner[R0].txt - [1909 octets] - [30/06/2014 20:13:41]
AdwCleaner[R10].txt - [1654 octets] - [17/09/2014 10:46:50]
AdwCleaner[R1].txt - [1219 octets] - [30/06/2014 20:40:00]
AdwCleaner[R2].txt - [1339 octets] - [01/07/2014 13:55:56]
AdwCleaner[R3].txt - [1459 octets] - [07/07/2014 00:02:17]
AdwCleaner[R4].txt - [1579 octets] - [10/07/2014 23:13:53]
AdwCleaner[R5].txt - [1675 octets] - [14/07/2014 19:06:14]
AdwCleaner[R6].txt - [1580 octets] - [14/07/2014 19:08:59]
AdwCleaner[R7].txt - [2213 octets] - [09/08/2014 14:49:21]
AdwCleaner[R8].txt - [2273 octets] - [14/09/2014 16:14:34]
AdwCleaner[R9].txt - [2018 octets] - [14/09/2014 16:29:26]
AdwCleaner[S0].txt - [1928 octets] - [30/06/2014 20:15:34]
AdwCleaner[S1].txt - [1280 octets] - [30/06/2014 20:42:02]
AdwCleaner[S2].txt - [1400 octets] - [01/07/2014 13:58:36]
AdwCleaner[S3].txt - [1520 octets] - [07/07/2014 00:05:10]
AdwCleaner[S4].txt - [1740 octets] - [14/07/2014 19:07:09]
AdwCleaner[S5].txt - [2334 octets] - [14/09/2014 16:21:30]

########## EOF - C:\AdwCleaner\AdwCleaner[R10].txt - [2615 octets] ##########

The only strange thing is that this conduit search is coming back although I fixed it through Malwarebytes, ADW and manually. But I have Speeddial 2 as new tab so I don't even recognize it.

For CCleaner I just did a registry scan and fixed the issues. Which other scans should I make? The cleaner scan is kind of rough since it wants to delete all the history, session etc data from Chrome?!

After Scan and Fix everything is still the same.
When connected via LAN the computer starts stuttering when streaming/loading stuff (even websites).

Malicious Software Removal Tool Scan from Microsoft didn't find something either..
 
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T

Tomasch

Reputable
Sep 16, 2014
8
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4,510
[EDIT:] Installed Bitdefender Internet Security 2015 --> Problem back

I guess I solved it by myself...
Completely deinstalled Avast Internet Security 2015.
No stuttering anymore.
CPU load is still very high, but no latencies in video playback anymore..

I guess that means that I'll change my virusscanner..
 
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T

Tomasch

Reputable
Sep 16, 2014
8
0
4,510
The conduit is not the problem: It was there before the problem appeared and I already deleted it completely except the entry in the chrome settings file (deinstalled it, removed extensions, removed registry entries manually etc.). So this is not the problem.

The problems started when I updated my drivers! But I can't go back to the state before cause I don't have a backup and the restore points already got overwritten by current ones.

What I updated:
Practically almost everything that was outdated - used SlimDrivers.. maybe wasn't the best choice..
I remember:
- Chipset driver (not 100% sure but a lot of Intel drivers)
- SATA AHCI Controller
- Various system drivers like:
--- Intel(R) 5 Series/3400 Series Chipset Family PCI...
--- Intel(R) 5 Series/3400 Series-Chipsatzfamilie - Thermosubsystem
--- and a few others
- Audio Realtek driver
- PCI-E-Gigabit-Ethernet-Controller Qualcomm Atheros AR8151(NDIS 6.30)
- Broadcom 802.11n-Netzwerkadapter

What I tried so far:
- Try to go back by restore points --> didn't work
- Deinstall virus scanner --> didn't work
- removed all apps from startup --> didn't work
- tried to identify the causing process with process explorer --> the process causing the cpu load was either system or chrome, but chrome not to much (30-40%) so I guess its driver related..
- tried to switch back to the old drivers by installing the vendor drivers from acer --> didn't work (maybe there are some drivers missing that I updated via SlimDrivers)

What I found out so far:
- The latency and lags don't appear with Wifi/WLAN --> Just when connected via LAN/Ethernet
- The latency and lags appeared after the driver updates --> So nothing to do with malware
- The latency and lags are caused when streaming videos (only in the time when it's loading/downloading) and when downloading bigger files and probably also when loading a website, but not that strong --> So to sum up: Always when the LAN/Ethernet is busy
 
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Tomasch

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Sep 16, 2014
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4,510
Do you want me to post the link to my config? The suggested drivers where for my graphics card (I guess cause I use the beta driver) and for my Logitech Keyboard/mouse. But I don't need the special driver for it.
And what do you mean with the buffering size? Where do I check? In Device Manager?
 
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Tomasch

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Sep 16, 2014
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The page always said that I should install the plugin for detection (which is installed), and when I press to launch the detection this little gray window from MaConfig appears shortly and then it goes back to tell me to install the plugin. Deinstalled it ones and installed it again, tried Firefox, IE and Chrome, no extension gets blocked which could hamper the plugin from working.

For the buffering: What do you want me to do? When I'm playing youtube videos on my browser flash player is the player, right? Where do I configure the Buffersize for Flash Player?

Thanks for your help so far! I really appreciate it!
 
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T

Tomasch

Reputable
Sep 16, 2014
8
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4,510
Did a short LatencyMon test while watching a video.. hope that helps..

682c49ce33.png
 
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scout_03

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after you install the plug in you must retry the page link and press my driver it should detect it also it could be your antivirus software that block the plug in from install you may have to disable it momentary for the time of the install ,on the latency monitor they give you some advice for network and cpu settings see if that would help to made the change they ask . adding this try the latency monitor on my system and it tell me as buffer underruns even if i dont have issue with .
 
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