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Windows 7: Window 7 freezing or dropping router connection.

14 Nov 2011   #1

windows 7 64bit
Window 7 freezing or dropping router connection.

Hello everyone,

I have been struggling with my pc dropping internet connection and not seeing the router as well as it freezing at random times, from 5mins use to several hours, but lately its alot more. Its a cyberpower system machine I bought in oct 2008, its had ALOT of use. See below for system specs below please if needed.

It will freeze at all sorts of times, does not matter which application I have open. I have to hard reboot. It will also freeze on shutdown sometimes. I get all sorts of errors on connection loss, it will say the default gatway not available, it will ask me to reset my router too. It resets Local Area Connection adapter all the time, when I try to resolve the issue. It also says "Local Area Connection" doesn't have a valid IP configuration, and resets all my settings back to Obtain IP addresses automatically, as well as Obtain DNS server address automatically in the Internet Protocol Version 4 settings. If I put all the IP addresses and default gateway stuff back in without resetting the router, it then says Troubleshooting couldn't find the problem. Resetting the router usually does work. But not always, sometimes I need a restart. It Sometimes it works if I restart, sometimes it still won't see the router. *pulls hair out*
I'm totally at my wits end now with this, I have no idea what's going on and I'm not computer savy at all, I'm just trying to get through this step at a time, to try and figure out what is doing this. I really need some more help please. I would send machine back to cyberpower but they are halfway across the country.

I tried putting the IP address in as static, put in the subnet mask, and default gateway.
I use the Preffered DNS server IP in there as it helps use network gaming and platforms better like SecondLife.
I've tested the router network with same cable I use on another laptop so the cable is fine.
Changed ASDL filters twice.
Bought new router.
I've replaced my harddrive.
I've tried two different driver versions for my network card which is a Marvell Yukon 88E8056 PCI-E Gigabit Ethernet Controller
I've resit my memory.
Tried restoring system to a few days before it started freezing again.
I've reinstalled windows a few times now, usually it works for a while (week or two) after a fresh new install.
Its a fresh new windows 7 I bought as the machine came with vista.
I've manually tried to put in all the drivers I need myself as I don't have the disk that came with my machine. (I have no idea if I've done that right)
Sent it in for a service clean and checkup.
Turned off the option that windows shuts my network driver down to save on power.

Thank you very much and all help welcome.

(Left out actual IP address numbers from communication, I have no idea if that is safe to forum lol*)
Operating System new – server roles
Windows 7 Home Premium (x64) Service Pack 1 (build 7601)
Install Language: English (United States)
System Locale: English (United Kingdom)
Installed: 04/11/2011 00:49:01

3.00 gigahertz Intel Core2 Duo
64 kilobyte primary memory cache
6144 kilobyte secondary memory cache
64-bit ready
Multi-core (2 total)
Not hyper-threaded

System Model
No details available

Main Circuit Board b
Board: ASUSTeK Computer INC. P5E Deluxe Rev 1.xx
Serial Number: MS1C84BZEE01018
Bus Clock: 333 megahertz
BIOS: American Megatrends Inc. 0501 12/08/2009

new Hosted Virtual Machines (mouse over name for details)
None discovered

new USB Storage Use in past 30 Days (mouse over last used for details)
SAMSUNG HD103SI, s/n FAFFFFF0FDF1F5F9CF616915 Last Used 06/11/2011 09:18:04*
* Possibly used again before the reboot following this time.

new Hosted Virtual Machines (mouse over name for details)
None discovered

Drives new – drive encryption
500.00 Gigabytes Usable Hard Drive Capacity
379.24 Gigabytes Hard Drive Free Space
ST3500413AS [Hard drive] (500.11 GB) -- drive 0, s/n 6VMXVVYM, rev JC4B, SMART Status: Healthy

Memory Modules c,d
4096 Megabytes Usable Installed Memory
Slot 'DIMM0' has 2048 MB
Slot 'DIMM1' is Empty
Slot 'DIMM2' has 2048 MB
Slot 'DIMM3' is Empty

Local Drive Volumes new – volume encryption
c: (NTFS on drive 0) 500.00 GB 379.01 GB free
Network Drivers
None discovered
ATA Channel 0 [Controller] (3x)
ATA Channel 1 [Controller] (3x)
Intel(R) ICH9 Family 2 port Serial ATA Storage Controller 2 - 2926
Intel(R) ICH9R/DO/DH 4 port Serial ATA Storage Controller 1 - 2920
Standard Dual Channel PCI IDE Controller
Printers ( I don't have printers or fax machine plugged in, never have)
Microsoft Shared Fax Driver on SHRFAX:
Microsoft XPS Document Writer on XPSPort:

AMD High Definition Audio Device (2x)
Microsoft LifeChat LX-3000
SoundMAX Integrated Digital HD Audio

Bus Adapters
Intel(R) ICH9 Family USB Universal Host Controller - 2934
Intel(R) ICH9 Family USB Universal Host Controller - 2935
Intel(R) ICH9 Family USB Universal Host Controller - 2936
Intel(R) ICH9 Family USB Universal Host Controller - 2937
Intel(R) ICH9 Family USB Universal Host Controller - 2938
Intel(R) ICH9 Family USB Universal Host Controller - 2939
Intel(R) ICH9 Family USB2 Enhanced Host Controller - 293A
Intel(R) ICH9 Family USB2 Enhanced Host Controller - 293C

ATI Radeon HD 4800 Series [Display adapter] (2x)
Samsung SyncMaster [Monitor] (24.0"vis, s/n HU24HS2Q501872, May 2008) (2x)

Communications new – connection speed & status

↑ Marvell Yukon 88E8056 PCI-E Gigabit Ethernet Controller
APIPA Address:
Dhcp Server: none responded
Physical Address:
Connection Speed: 100 Mbps
Microsoft ISATAP Adapter
Teredo Tunneling Pseudo-Interface

Other devices:
VIA 1394 OHCI Compliant Host Controller
Logitech Driver Interface (2x)
HID-compliant consumer control device (3x)
HID-compliant device (6x)
Logitech HID-compliant Unifying device (2x)
Logitech Unifying USB receiver
USB Input Device (6x)
HID Keyboard Device (3x)
Standard PS/2 Keyboard
HID-compliant mouse
Logitech HID-compliant Unifying Mouse
Logitech GamePanel Devices (Mono)
Logitech GamePanel Devices (QVGA)
Generic USB Hub
USB Composite Device (3x)
USB Root Hub (8x)
Generic volume shadow copy

Virus protection
AVG Anti-Virus Free Edition 2012

My System SpecsSystem Spec
14 Nov 2011   #2

Microsoft Windows 8.1 Pro 64-bit

1st off avg is a heavy antivirus, I highly recommend toasting it. Don't remove it without the proper tool.
If you really don't want too, you do not have to remove it. But an even better Antivirus is Microsoft Security Essentials, you should try it out.

After that is done, Malwarebytes is an antimaleware software that is perfectly able to run side-by-side with Microsoft Security Essentials. You should update both and then full scan with both, one after the other. May take an hour or more depending on how much you have on your computer. Good news about malwarebytes is it doesn't need to run automatically, only manually if ever you feel it should be run (to clean out your system of malware the safe way).

Run windows update. DO install all important updates, and even optional updates that help your system (things that fix problems but aren't required, such as compatability updates).

I can help you further provided you follow some of the things in my signature at the bottom, especially the part where you "Fill out your system specs (this tool may help you out a great deal)."

Soon I will be having you update drivers and then we will go from there
My System SpecsSystem Spec
15 Nov 2011   #3

windows 7 64bit

Hi Dusty, thanks ok I'll try those tonight and see how I get on!!! It's extremely hard as it freezes constantly and drops connection very quickly if I can get on it...
My System SpecsSystem Spec

15 Nov 2011   #4

Microsoft Windows 8.1 Pro 64-bit

Try this for now: Optimize Windows 7. That may help somewhat with the freezing. Do you know what started the freezing happening? There could be something wrong with your computer itself (hardware), so we'll see about that if we can. It only freezes, it has no BSOD right?

Do this one if you can: run command prompt as an administrator and run this command:
SFC /scannow

Hopefully your computer doesn't freeze too much, especially during this testing.

This looks like a hard problem to solve, so I will help you, but just know the absolute easiest method is probably going to be a complete reinstall.

you might try loading safe mode with networking (F8 i think during bootup) and downloading/installing these items to try and keep the computer from crashing. Some of these items cannot be installed or completed in safe mode so just be aware, but it may be worth it for the ones that can, depending on how often you crash.
My System SpecsSystem Spec

 Window 7 freezing or dropping router connection.

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