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Windows 7: Ethernet Connection Lost (and Found?)

04 Nov 2009   #41
alloo

 
 

Have you all tried disabling the windows firewalls, and I mean all of them? Have you tried disabling the security software firewalls?


My System SpecsSystem Spec
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04 Nov 2009   #42
thr0b

Windows 7 Home Premium Family (32 bits)
 
 

Yes I did.
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04 Nov 2009   #43
Xello

Windows 7 HP x64
 
 

I tried disabling the windows firewall once, not sure what you mean by 'all firewalls' but i only use the windows one.

I've completed my first day of testing the issue on a new clean install of Windows 7, and the issue yesterday still came up.

Today, i came home from work and seen that my connection to IRC hadn't dropped in 8 hours, what was different? I accidently paused all my torrents before i went to work so there were none running (which usually maxes out my upload constantly).

Could have found the culprit here, i will investigate more.
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04 Nov 2009   #44
Chasm

Windows 7 Professional RTM
 
 

I think I mentioned this in my OP, but the connection drop is triggered by file transfers. Either bittorrent or copying files over the network will usually cause a drop after some time. If I turn off bittorrent and I don't copy files over my LAN, the network connection is fine.
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04 Nov 2009   #45
Eggdashure

Windows 7 RC 7100
 
 

Quote   Quote: Originally Posted by Xello View Post
I tried disabling the windows firewall once, not sure what you mean by 'all firewalls' but i only use the windows one.
Not sure if this is where he is going or not, but you can disable the Windows Firewall on certain connections and still have it running on others. Example: I have a Wireless Connection and Wired Connection. Since all of my troubles stem from the wired connection I thought I would disable the firewall and check for issues. Doing this only disabled the Firewall settings on the "Public" network, not the home network. Just my observation.
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05 Nov 2009   #46
Chasm

Windows 7 Professional RTM
 
 

Ok more information.

The issue is most likely a TCP handshake issue. When the network connection 'fails', I am still able to perform ping and nslookup commands. This is consistent with the symptom of open connections remaining open, since you've already established the TCP connection. Ping just sends ICMP and nslookup by default uses UDP so neither of those require a TCP connection to be established.
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06 Nov 2009   #47
Xello

Windows 7 HP x64
 
 

Alright guys i have found the program at fault for me, and it is uTorrent. I don't know why, i will investigate its settings later, but after not running torrents for 18 hours i have not had a single crap-shoot moment or disconnect with my connection.
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06 Nov 2009   #48
RugbyHoe

Windows 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by Chasm View Post
Ok more information.

The issue is most likely a TCP handshake issue. When the network connection 'fails', I am still able to perform ping and nslookup commands. This is consistent with the symptom of open connections remaining open, since you've already established the TCP connection. Ping just sends ICMP and nslookup by default uses UDP so neither of those require a TCP connection to be established.
That may very well be, but if the TCP stack is malfunctioning or dead, I still qualify the connection as meeting the "failed" criteria. Ping and nslookup are fine networking utilities, but not nearly so useful to most as are being able to use the web and to access shared files on their home networks. I really don't care how quickly I can find and ping a file server if I still can't play the tunes or videos it is hosting...

Maybe this might help narrow down the issues by eliminating lesser used networked protocols from the equation though. Anyone know to what extent MS may have tweaked the TCP stack for 7? I know they performed a major overhaul in Vista/Longhorn - but I hadn't heard anything similarly terrifying with regards to 7.
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06 Nov 2009   #49
codename47

Windows7 64-bit
 
 
Signal won't stabilize. 20Mb speed to 1Mb. Driver Issue

Motherboard/NIC: XFX nForce 650i Ultra/SMWUSB-G 802.11g wireless USB 2.0 Adapter #2 (no clue of why the #2 it wasn't there before)

Wired or Wireless: Wireless

CPU Architecture: x64

Upgrade or Clean Install: Upgrade from W7 x32 to x64

Driver details:With the x32 everything worked well. After upgrade the driver that came with the CD stopped working. W7 wouldn't see wireless connections. The NIC wouldn't be recognized.

Problem description: After upgrade my internet would only be recognized after i would install the driver that came with the CD and what i think is an older version of it in the same folder. That's the only way W7 would see a wireless connection. Now that it's recognized my internet speed won't get passed 2Mb when it's actually suposed to be 20. Plus after doing something i don't really know what my signal won't go over two bars in five when it used to be always with three or more.

Solutions or Suggestions: What i have tried to fix it

- NForce 650i driver update
- DOS command "netsh int tcp set global autotuninglevel=disabled"
- TCPOptizmier: gotten only worse and i think it was when my signal started to get weaker.
- Disaled IPv6 in internet options
- Disabled QoS

Event Viewer is presenting me more than 74.000 errors among which these occur very often:

- TCP/IP failed to establish an outgoing connection because the selected local endpoint was recently used to connect to the same remote endpoint. This error typically occurs when outgoing connections are opened and closed at a high rate, causing all available local ports to be used and forcing TCP/IP to reuse a local port for an outgoing connection. To minimize the risk of data corruption, the TCP/IP standard requires a minimum time period to elapse between successive connections from a given local endpoint to a given remote endpoint.

- The PCASp50a64 NDIS Protocol Driver service failed to start due to the following error:
The system cannot find the file specified. (this one is like 50.000 times)

- Faulting application name: setup.exe_SMCWUSB-G 802.11g Wireless USB 2.0 Adapter, version: 12.0.0.58851, time stamp: 0x45e5fc0e
Faulting module name: ISSetup.dll, version: 12.0.0.58851, time stamp: 0x45e5fbd0
Exception code: 0xc0000005
Fault offset: 0x00092e5f
Faulting process id: 0x3b8
Faulting application start time: 0x01ca45e8ac15bf20
Faulting application path: C:\Users\...\Desktop\SMCWUSB-G_DRV_v1.0.0.9 (Vista included)\Drivers\setup.exe
Faulting module path: C:\Users\...\AppData\Local\Temp\{A6A5D37D-5DD7-4E05-B286-D0AF6223EE3E}\ISSetup.dll
Report Id: f2efb720-b1db-11de-ba83-00044b06c5cb

- WLAN AutoConfig service has successfully stopped.

I saw SMC "created" a W7 driver now..but after downloading it i saw they only provided two .sys files and a few .inf. So i don't really know what to do with them. I'm getting pretty desperate here.
My System SpecsSystem Spec
07 Nov 2009   #50
guitardog247

Windows 7
 
 

I keep seeing these internet connection problems. And stlill, no one has said if they have created a workgroup, or tweaked the sharing settings, or created a homegroup. I'm telling you that is the answer to your problems! But yet this post will get ignored.
It's not about drivers. Also have you checked out How to setup Local Area Connection in Windows 7 ~ xclusive4all

Just don't set up our IP for static, leave it at DHCP.

And create a workgroup, and home network. This will take care of your problems once and for all.
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 Ethernet Connection Lost (and Found?)




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