Ethernet Connection Lost (and Found?)

Ok, check my update mate, it's not all bad!!

Seems the problem is always behind a router. I had a netgear, using a realtek onboard network adapter on my Intel mobo. I would always lose connection on restart and/or start up from shutdown.

I did a variety of things to solve it, the damn exclamation point is gone now.

People should list what they have in the network and sharing center. Like is it showing an unidentified network? Have you created a new network? Have you enabled the sharing to establish a home network? Created a Workgroup?

Creating a new network pretty much established it for me. But this subject is so far over the place I see on the internet. It's disappointing. Because it shouldn't be that hard.

Motherboard/NIC:ASUS Striker Extreme nForce 680i SLI ATX

Wired or Wireless: Wired Connection

Router:Belkin Wireless G Router Here

CPU Architecture: Intel Core 2 Duo E6850 3.0Ghz

Upgrade or Clean Install: Clean Install of Windows 7 Ultimate 64 Bit

Driver details:nForce drivers ver 15.51 2009.10.06

Problem description:I will be playing Games or Surfing the net and after awhile i'll disconnect from all the internet.Most of the time i can disable the adaptor then troubleshoot it and it works,but there are other time where a have to disable it and then restart the computer and then i'm back online.I do have Ipv6 disable and Currently trying QoS disabled.I also did get a screen shot of the Local Area Connection when it went down.Clickey besides the numbers being mathematically impossible in that ammount of time with a 320Kb's Download.

Motherboard: Gigabyte GA-MA78GM-S2H [AMD AM2+]

Wired: Realtek 8111C chip

Upgrade: From Windows 7 RC to Windows 7 Home Premium (following the steps linked under "Tutorials" for actually doing such an upgrade)

Problem Lead-up--and solution (?): I was one of the participants in the prior thread, who had periodic (once a day, roughly) disconnects with various beta through RC versions of Windows 7 (32-bit). Solved when I installed a new realtek-supplied driver (7.5.730.2009). After upgrading to the "released" version of Windows 7, the drop-outs started again. I checked on my "Driver Version" under my Realtek network adaptor in Device Manager and, sure enough, the upgrade had replaced my driver with an earlier version. I reinstalled the above-mentioned driver (Windows couldn't find it on its own), and so far, so good. I can't believe Windows didn't get this fixed, however....

PROBLEM SOLVED (sorry if you have already found this out)

Ok so I had this problem for ages. First encountered it back in August I think. Looked high and low for a solution, but to no avail Eventually I gave up and went back to my XP install on another partition. I came back to 7 a few days ago and the problem was still there but I could go an hour or two before needing to restart the network card... It was however still very annoying so I looked for a solution. I read that Photoshop installs a service/program called Bonjour. I had Photoshop installed but there was no bonjour directory, but uninstalled it anyway. That didn’t work so next I tried uninstalling Office 2007 (there was talk somewhere else that the Office auto updater was causing problems) but that didn't work. Next I tried disabling IP v.6, again no luck there. Then I came across this:

Once more: "No network access - unidentified network"

I followed the instructions there at the top and it worked (I think, has been 24 hours now and no problems)! Basically type in the command: netsh winsock reset calatog

I should mention that my motherboard is an Asus M2N-SLi Deluxe which uses the Nforce 570sli chipset, which has "built-in dual Gigabit MAC with external Marvell PHY". From these posts there seem to be a lot of people having problems with Marvell cards... could have been something to do with that. More likely it is due to the slackers at Microsoft. Also I am using 7 64bit Ultimate.

Any ways... this forum is great and has helped me many times! Big thanks to all the posters who know their S**t!!! :)

Solved when I installed a new realtek-supplied driver (7.5.730.2009). ..

Where did you find that driver version? The only one at Realtek.com is 7.006 dated 10/23/09

When I disabled ALL of the windows 7 firewalls the problem of unstable connectivity was solved.
Turn off Domain profile, private profile, and public profile. Do that by clicking the Windows Firewall Properties in the control panel/windows firewall/ advanced security display.

davefr said:

Solved when I installed a new realtek-supplied driver (7.5.730.2009). ..

Where did you find that driver version? The only one at Realtek.com is 7.006 dated 10/23/09

I down;loaded the driver in August; this--by the date--may be an even newer version. I'd try it. (The one installed by Windows 7 has a 2007 ending to it....) Good luck!

WTF?!

Last night I frustratedly was finishing up a clean install of 32 bit Win 7. It was my hope that 32 bit Vista drivers would work. During my AVG install I overloaded the circuits in my room. Keep in mind I only have the PC and Switch on this power circuit. So I run outside, flip the circuit...come back in start the computer and all of a sudden my stupid hard wired connection is working again.

The glee was short lived, an hour or so later it just flat cut out. The Ethernet device went from "Network Access" to "No Network Access" and it won't reconnect. Very frustrating.