LAN adaptor dropping out

Very new Dell optiplex 755 with Vista Biz + Intel 82566DM-2 Gigabit adaptor
to 100 local home LAN and internet connection. Frequent loss of LAN
connection > red cross > says network cable unplugged (but not). Switched
cables repeatley with old XP PC to eliminate this.

Tested card - OK (this might clear the problem sometimes).

Found a reference to Windows powermanagement but not able to try dissabling
as my Power Management tab differs.

Did not notice untill after I ran Transfer Files & Settings.

Help

Looking at earlier posts suggests that the folowing info may help ...

Windows IP Configuration

Host Name . . . . . . . . . . . . : NewOne
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Local Area Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) 82566DM-2 Gigabit Network
Connection
Physical Address. . . . . . . . . : 00-1E-4F-9B-1C-B8
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 6:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : 02-00-54-55-4E-01
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 7:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . :
isatap.{77364969-DF87-49E4-AB94-E36C10AF1614}
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Default Gateway . . . . . . . . . :
NetBIOS over Tcpip. . . . . . . . : Disabled

The DHCP doesn't assign IP to the computer. Have checked if there is a new
firmware for the router and new driver for NIC? Or check this link.

Vista: DHCP FailsAlso remember that originally on vista i was able to get a
dhcp address. only one of the updates? broke it. Now this morning when i
logged in, i got a dhcp ...
http://www.chicagotech.net/netforums...opic.php?t=594


--
Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on
http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on
http://www.HowToNetworking.com


"Alastair" <Alastair@discussions.microsoft.com> wrote in message
news:274E8986-C6E2-4D39-A306-58D0792AEC36@microsoft.com...
> Looking at earlier posts suggests that the folowing info may help ...
>
> Windows IP Configuration
>
> Host Name . . . . . . . . . . . . : NewOne
> Primary Dns Suffix . . . . . . . :
> Node Type . . . . . . . . . . . . : Hybrid
> IP Routing Enabled. . . . . . . . : No
> WINS Proxy Enabled. . . . . . . . : No
>
> Ethernet adapter Local Area Connection:
>
> Media State . . . . . . . . . . . : Media disconnected
> Connection-specific DNS Suffix . :
> Description . . . . . . . . . . . : Intel(R) 82566DM-2 Gigabit Network
> Connection
> Physical Address. . . . . . . . . : 00-1E-4F-9B-1C-B8
> DHCP Enabled. . . . . . . . . . . : Yes
> Autoconfiguration Enabled . . . . : Yes
>
> Tunnel adapter Local Area Connection* 6:
>
> Media State . . . . . . . . . . . : Media disconnected
> Connection-specific DNS Suffix . :
> Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
> Physical Address. . . . . . . . . : 02-00-54-55-4E-01
> DHCP Enabled. . . . . . . . . . . : No
> Autoconfiguration Enabled . . . . : Yes
>
> Tunnel adapter Local Area Connection* 7:
>
> Connection-specific DNS Suffix . :
> Description . . . . . . . . . . . :
> isatap.{77364969-DF87-49E4-AB94-E36C10AF1614}
> Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
> DHCP Enabled. . . . . . . . . . . : No
> Autoconfiguration Enabled . . . . : Yes
> Default Gateway . . . . . . . . . :
> NetBIOS over Tcpip. . . . . . . . : Disabled
>
>

> The DHCP doesn't assign IP to the computer. Have checked if there is a new
> firmware for the router and new driver for NIC? Or check this link.


NIC on latest drive as is the Netgear DG814 router - but this is not shown
as Vista compatable. Just ordered a DG834 (which is). Hopefully this will
help.

Thanks!

> Vista: DHCP FailsAlso remember that originally on vista i was able to get a
> dhcp address. only one of the updates? broke it. Now this morning when i
> logged in, i got a dhcp ...
> http://www.chicagotech.net/netforums...opic.php?t=594

I am currently experiencing the same problem. So far nothing I have done has
helped. This is the exact same machine and network card and Vista Ultimate.
Currently working with a Linksys SD208 switch, which according to their site
is vista compabitle.

Only similar occurance I have been able to track down on the internet was
someone replacing their NIC to fix the problem. Did your replacing the router
work?


"Alastair" wrote:

> Very new Dell optiplex 755 with Vista Biz + Intel 82566DM-2 Gigabit adaptor
> to 100 local home LAN and internet connection. Frequent loss of LAN
> connection > red cross > says network cable unplugged (but not). Switched
> cables repeatley with old XP PC to eliminate this.
>
> Tested card - OK (this might clear the problem sometimes).
>
> Found a reference to Windows powermanagement but not able to try dissabling
> as my Power Management tab differs.
>
> Did not notice untill after I ran Transfer Files & Settings.
>
> Help
>

I am currently experiencing the same problem. So far nothing I have done has
helped. This is the exact same machine and network card and Vista Ultimate.
Currently working with a Linksys SD208 switch, which according to their site
is vista compabitle.

Only similar occurance I have been able to track down on the internet was
someone replacing their NIC to fix the problem. Did your replacing the router
work?


"Alastair" wrote:

> Very new Dell optiplex 755 with Vista Biz + Intel 82566DM-2 Gigabit adaptor
> to 100 local home LAN and internet connection. Frequent loss of LAN
> connection > red cross > says network cable unplugged (but not). Switched
> cables repeatley with old XP PC to eliminate this.
>
> Tested card - OK (this might clear the problem sometimes).
>
> Found a reference to Windows powermanagement but not able to try dissabling
> as my Power Management tab differs.
>
> Did not notice untill after I ran Transfer Files & Settings.
>
> Help
>

I've got exactly the same problem - an Optiplex 755, but on XP. Intel(R)
82566DM-2 Gigabit Ethernet adapter keeps dropping out (seemingly
disconnecting then reconnecting a second later). The box in question is
connected to an Allied Telesyn At-9000 switch. Logging the following in
the Event Log:

Event Type: Information
Event Source: e1express
Event Category: None
Event ID: 32
Date: 22/02/2008
Time: 1:18:55 p.m.
User: N/A
Computer: ASSET153
Description:
Intel(R) 82566DM-2 Gigabit Network Connection Link has been
established: 1000Mbps.

Event Type: Information
Event Source: Tcpip
Event Category: None
Event ID: 4201
Date: 22/02/2008
Time: 1:18:55 p.m.
User: N/A
Computer: ASSET153
Description:
The system detected that network adapter
\DEVICE\TCPIP_{4A5B801A-6493-44B7-B698-13893FFF4304} was connected to
the network, and has initiated normal operation over the network
adapter.



Any help much appreciated. We have a few 755's and only one is
exhibiting these problems..


--
mick

Same thing here with an Optiplex 755. Dell said I should update the BIOS
and disable the Intel State Manager (Ctr+P when computer starts up).
I'll try it on Monday


--
microtom

[TonberryKing]

I am on XP and I have the same problem with the "network cable unplugged Intel 82566 etc. etc." I am on dial up internet at the moment and for some reason it is running very slowly, only connecting a 28kbs maximum. I am unable to download certain pagfes because they are timing out before they finish loading. I have read everyones posts on this matter but am unable to understand a solution. Would this problem with the "network cable" be causing my problem? and has anyone found how to fix the problem yet? otherwise I might return the computer to Acer, its still under warranty I only bought it 2 weeks ago.
p.s. if anyone does find how to fix it, and they post an answer, could they please send me an email at martin_jjackson@hotmail.com to let me know to check this site. thanks

The LAN BIOS Settings did the trick for me...


--
microtom

[TonberryKing]

OK, so, if you wouldn't mind, how do I go about "updating the BIOS" as you said. can i do this myself or must i return my PC to the manufacturer. u see i am an experienced user at applications but not so much on the altering system settings and the like, and when i try i have a habbit of doing more damage than good!
To be more specific on my "network connections" screen i have a dial up "Dodo" connection. and below that it says "LAN or High Speed Internet" and under that heading is the "network cable unplugged 82566 etc." Do you think this might be causing my slow dial up speed?. i am getting wireless broadband very soon, my modem has arrived im just waiting to finish the "cooling off period" I wonder if this "unplugged network cable" will affect my wireless. anyway, if you know how to help me i would be very appreciative.

Hello TonberryKing

You can do it, no need to return it and wait for te repairs. Press
Ctr+P when computer starts up and you will enter the Intel BIOS. As far
as I remember, you need to login using "admin" and no password (which
you'll get prompted to change then). There is an Option "Intel State
Manager" somewhere in that BIOS, just disable it and reboot. Then keep
your fingers crossed :)

Good luck

Tom


--
microtom

[just_joell]

Try changing the 'Wait for Link' setting to ON in device manager > network card > advanced settings.