takid1412,

Can you run Finding System Information REMOVE YOUR PRODUCT ID and REGISTERED OWNER and post the information back here.

�

What virus program and firewall are you using?

�

�

Rick

my sysinfo:

Host Name: COMPUTER OS Name: Microsoft Windows 7 Ultimate OS Version: 6.1.7601 Service Pack 1 Build 7601 OS Manufacturer: Microsoft Corporation OS Configuration: Standalone Workstation OS Build Type: Multiprocessor Free Original Install Date: 10/2/2013, 6:34:52 PM System Boot Time: 11/19/2013, 11:04:14 AM System Manufacturer: Dell Inc. System Model: Dell System Vostro 3460 System Type: x64-based PC Processor(s): 1 Processor(s) Installed. [01]: Intel64 Family 6 Model 58 Stepping 9 GenuineIntel ~2501 Mhz BIOS Version: Dell Inc. A17, 5/17/2013 Windows Directory: C:\Windows System Directory: C:\Windows\system32 Boot Device: \Device\HarddiskVolume1 System Locale: en-us;English (United States) Input Locale: en-us;English (United States) Time Zone: (UTC+07:00) Bangkok, Hanoi, Jakarta Total Physical Memory: 3,953 MB Available Physical Memory: 1,448 MB Virtual Memory: Max Size: 7,903 MB Virtual Memory: Available: 4,941 MB Virtual Memory: In Use: 2,962 MB Page File Location(s): C:\pagefile.sys Domain: WORKGROUP Logon Server: \\COMPUTER Hotfix(s): 16 Hotfix(s) Installed. [01]: KB2849697 [02]: KB2849696 [03]: KB2841134 [04]: KB2670838 [05]: KB971033 [06]: KB2533623 [07]: KB2639308 [08]: KB2729094 [09]: KB2731771 [10]: KB2786081 [11]: KB2834140 [12]: KB2882822 [13]: KB2888049 [14]: KB958488 [15]: KB976902 [16]: KB976932 Network Card(s): 5 NIC(s) Installed. [01]: Qualcomm Atheros AR8161/8165 PCI-E Gigabit Ethernet Controller (NDIS 6.20) Connection Name: Local Area Connection Status: Media disconnected [02]: Dell Wireless 1704 802.11b/g/n (2.4GHz) Connection Name: Wireless Network Connection DHCP Enabled: Yes DHCP Server: 10.0.0.2 IP address(es) [01]: 10.0.1.113 [02]: fe80::3c09:48e2:fee9:bebf [03]: Bluetooth Device (Personal Area Network) Connection Name: Bluetooth Network Connection Status: Media disconnected [04]: Microsoft Virtual WiFi Miniport Adapter Connection Name: Wireless Network Connection 3 Status: Media disconnected [05]: Broadcom Virtual Wireless Adapter Connection Name: Local Area Connection 2 Status: Media disconnected

i use MSE and i disabled window firewall.

takid1412,

Go to Drivers & Downloads enter your service tag number, then select your operating system. Under Network, download and install the latest drivers.

Try these tweaks....

Start, control panel, device manager. Click on Network and then right click on your network adapter, left click properties, power management. Uncheck the box, allow computer to turn off this device to save power.

Click on advanced. Look for antenna diversity. Change it from Auto to Aux.

Go to the power options, and changed the Wireless Adapter Setting, from Maximum Power Setting to Maximum Performance.

�

�

Rick

Rick,

Thanks for your answer

but my problem is about [01]: Qualcomm Atheros AR8161/8165 PCI-E Gigabit Ethernet Controller (NDIS 6.20)
Connection Name: Local Area Connection

I tried fresh windows install and lastest driver last week, i did same thing like your post with my Qualcomm... And that problem is still here.

When that card missing, i saw a second High Definition Audio with yellow. It use PCI bus of missing card.

takid1412,

Ah, a fresh install of Windows. I read that you installed Windows Original Install Date: 10/2/2013

When you reinstalled the operating system, did you install the Dell System Software(if applicable) and the chipset drivers first? If not, the rest of the drivers will fail to install. How to Download and Install Drivers in the Correct Order

Start with the Dell System Software and the chipset drivers and follow the list.

�

�

Rick

Rick,

I've tried to install a fresh windows and driver in right order.

But nothing is changed.

Now Ethernet card only show about 30sec after logon to window.

The newest change i did is update bios from dell. Do you know the original version of my laptop? its service tag is . I find so many version.

Specially, at now, when my card disappear, the internet of other computer in Lan are down until i unplug my cable.

I'm so tired and i don't think it's just software problem. How do you think?

Thanks,

Rick,

Now my laptop works fine on work network, i'll try to my network on home and reply soon.

anyway, thanks for your help.

takid1412,

Keep me posted. It may have something to do with your home network.

Rick

Rick,

Finally it work. Phew.

I'll try to run some program use graphic card (like my first post) many times. if it break again, i think it is harware problem.

Thanks, have a nice day.

takid1412,

Glad you got it working! :emotion-21: Thanks for posting back.

Take care,

Rick