[Windows 2003 gets disconnected from network]

Hello, sorry for the long time I've been offline.

At the end I solved the problem.

First,

You must update the NIC firmware. Get the latest in IBM web site. It's very important to update it, if the version is the same that you have installed STILL YOU HAVE TO UPDATE IT. I have the suspicious that the firmware loaded is not the same although the version number is the same.

Also update the Windows 2k3 NIC driver to the latest.

Very important,

You have to do this operation on ALL blades. My problem only solved when I updated ALL blades with those drivers.

If you only update one blade you'll still get that problem (!!???!!!).

see you.

Albert.-

[Windows 2003 gets disconnected from network]

Hi pikjapik,

So, you have an IBM BladeCenter model 86772xx with Swith Module part number 26K6483 and IBM Blade Servers model HS20 (machine type 8843) and you solved the problem resetting the Switch Modules to factory defaults ??? (plase confirm you have same hardware)

One more thing, please, tell me which firmware version you have installed on Switch Modules.

thanks in advance.

[Windows 2003 gets disconnected from network]

Hi,

eplrs,

I tried that option (power management) when the problem started, it was one of the first things I did and didn't work.

pikjapik,

So, you have an IBM BladeCenter model 86772xx with Swith Module part number 26K6483 and IBM Blade Servers model HS20 (machine type 8843) and you solved the problem resetting the Switch Modules to factory defaults ??? (plase confirm you have same hardware)

One more thing, please, tell me which firmware version you have installed on Switch Modules.

thanks in advance.

Albert.-

[bandwidth throttling?]

Hi,

I think that you can use a a program called Shinra/Nimbus

check this link:

http://www.broadbandreports.com/forum/rema...e,opt~mode=flat

I hope it helps.

[Windows 2003 gets disconnected from network]

Hi,

I need to know ho has the same problem.

pikjapik, you have the same problem ?

in that case, have you a BroadCom 57xx NIC ?

thanks.

[Windows 2003 gets disconnected from network]

Hi,

no, no, I don't have the solution for the moment. Still working with Microsoft, it seems that the MS technician is taking his time....

[Windows 2003 gets disconnected from network]

Ok,

Now I am working with Microsoft. When solved I'll post the solution to this strange problem.

thanks.

[Windows 2003 gets disconnected from network]

Hi,

klasika,

Thanks for the inforation I'll check it. This week I'll be in contact with Microsoft, I have opened a case and I hope that problem can be solved. I'll let you know the solution (if any) ;-)

thanks.

[Windows 2003 gets disconnected from network]

Hi,

thanks for your replies but I have discarded hardware related problems. Before installing windows 2003 Server I had windows 2000 server with no problems so I discard NIC problems and switch problems.

When I installed windows 2003 server the network problems began. I installed from zero (not migrated). The problem is that I can't rollback to 2000.

this is very strange... and I am really desperate.

for the moment I will place a service call to MS and of course have to pay.

thanks.

[Windows 2003 gets disconnected from network]

Hi,

it_ybd,

Yes I know. It is just the hardware is designed as this. The IBM BladeServer HS20 connects to the BladeCenter Chassis backplane which shares a common gigabit switch with 14 internal ports at only 1 Gb speed and 4 external ports at 10/100/1000 that you can trunk to you core switch so the problem is not the speed, nor the switch or cable.

thanks for your thoughts.

for the moment to get arround this problem I created a scheduled task that disables and enables the adapter when it gets freezed.

=================================

chekif.cmd

=================================

*******************************************

@echo off

SET TESTIPADDR=192.168.61.20

SET LOGFILE=c:\windows\iferror.log

Rem //

ping %TESTIPADDR%

if %errorlevel% LSS 1 goto okay

echo *ERROR* >> %LOGFILE%

date /T >> %LOGFILE%

time /T >> %LOGFILE%

echo Interface Restart >> %LOGFILE%

ifstop.vbs

ifstart.vbs

echo ----------------------------------- >> %LOGFILE%

Rem //

goto fin

:okay

echo *OK*

:fin

echo Retorno=%errorlevel%

******************************************

=================================

ifstop.vbs

=================================

Const ssfCONTROLS = 3

sConnectionName = "LAN"

sEnableVerb = "&Activar"

sDisableVerb = "&Desactivar"

set shellApp = createobject("shell.application")

set oControlPanel = shellApp.Namespace(ssfCONTROLS)

set oNetConnections = nothing

for each folderitem in oControlPanel.items

if folderitem.name = "Conexiones de red" then

set oNetConnections = folderitem.getfolder: exit for

end if

next

if oNetConnections is nothing then

msgbox "Couldn't find 'Network and Dial-up Connections' folder"

wscript.quit

end if

set oLanConnection = nothing

for each folderitem in oNetConnections.items

if lcase(folderitem.name) = lcase(sConnectionName) then

set oLanConnection = folderitem: exit for

end if

next

if oLanConnection is nothing then

msgbox "Couldn't find '" & sConnectionName & "' item"

wscript.quit

end if

bEnabled = true

set oEnableVerb = nothing

set oDisableVerb = nothing

s = "Verbs: " & vbcrlf

for each verb in oLanConnection.verbs

s = s & vbcrlf & verb.name

' msgbox verb.name

if verb.name = sEnableVerb then

set oEnableVerb = verb

bEnabled = false

end if

if verb.name = sDisableVerb then

set oDisableVerb = verb

end if

next

if bEnabled then

oDisableVerb.DoIt

end if

wscript.sleep 8000

=================================

ifstart.vbs

=================================

Const ssfCONTROLS = 3

sConnectionName = "LAN"

sEnableVerb = "&Activar"

sDisableVerb = "&Desactivar"

set shellApp = createobject("shell.application")

set oControlPanel = shellApp.Namespace(ssfCONTROLS)

set oNetConnections = nothing

for each folderitem in oControlPanel.items

if folderitem.name = "Conexiones de red" then

set oNetConnections = folderitem.getfolder: exit for

end if

next

if oNetConnections is nothing then

msgbox "Couldn't find 'Network and Dial-up Connections' folder"

wscript.quit

end if

set oLanConnection = nothing

for each folderitem in oNetConnections.items

if lcase(folderitem.name) = lcase(sConnectionName) then

set oLanConnection = folderitem: exit for

end if

next

if oLanConnection is nothing then

msgbox "Couldn't find '" & sConnectionName & "' item"

wscript.quit

end if

bEnabled = true

set oEnableVerb = nothing

set oDisableVerb = nothing

s = "Verbs: " & vbcrlf

for each verb in oLanConnection.verbs

s = s & vbcrlf & verb.name

if verb.name = sEnableVerb then

set oEnableVerb = verb

bEnabled = false

end if

if verb.name = sDisableVerb then

set oDisableVerb = verb

end if

next

if bEnabled then

' oLanConnection.invokeverb sDisableVerb

' oDisableVerb.DoIt

else

oEnableVerb.DoIt

end if

wscript.sleep 8000

*******************************************

*******************************************

Note that this is a temporal fix it is not the solution.

Has anyone got a similar problem like this before ? @Jpry565 ?

Regards.

[Windows 2003 gets disconnected from network]

Hi,

tguy,

Changing port speed configuration is not an option. In the NIC configuration properties dialog there is no chance to do this, it seems that this NIC is designed to work at speed of 1 Gb only. There are other options like: 802.1p QoS, checksum offload, flow control, jumbo mtu, large send offload and locally administered address.

I also have checked the switch module in the BladeCenter chassis and there is no option to change the port speed. The only parameters that I can change are: state (enabled/disabled) and Flow Control (enabed/disabled).

About the advanced properties of network connections the binding order seems correct but I let you know that I am using Microsoft iSCSI Driver. The order of connections listbox is: iSCSI Adapter (gigabit #2), LAN Adapter (gigabit #1), Remote Access Connections. I think that I could put LAN adapter in the first place isn't it ?

For iSCSI adapter I have not checked any client (shared files and microsoft client).

In my tests I tried to disable iSCSI Initiator service with no results.

One more thing, I am not teaming NIC's.

For the moment I have to try manual replication and look for replication monitor. I am new on this and I have to see how to do.

thank you very much.

[Windows 2003 gets disconnected from network]

Hi,

Thanks for your responses.

Jpatto,

Event viewer says nothing. Only Win32Time and replication errors due to the lack of network access.

The steps you wrote on resetting IP didn't work. In the past, before installing Service Pack 1, I tried those steps with no good results.

klasika,

I didn't try replmon.exe I thing it is a good suggestion. I'll try and let you know.

Marsden,

Use a different NIC is not possible. The BladeServer doesn't have this option. The NIC is integrated on the board.

thanks.

...still trying new things.

Any suggestions ?

[Windows 2003 gets disconnected from network]

Hi all,

I recently installed two Windows 2003 Server Standard Edition

At randon times network freezes. The server continues to function properly except networking. No matter what server, it is indifferent, the two servers have the same problem.

The two servers are Domain Controllers and working in mixed mode with AD, one is PDC and the other is BDC.

After I disable and enable network interface I recover network access again. So, I suppose the problem is with the TCPIP Stack.

Hardware used: IBM BladeServer HS20 Model 8843.

Integrated NIC: Broadcom 57xx NetXtreme Gigabit Card.

I have tried: updating drivers, installing latest hotfix and the last one: installing Service Pack 1 for windows 2003. I have been in contact with IBM and updated BIOS and BMC but no good result, the hardware is good (I have same model on Windows 2000 Server and I don't have this problem).

I think that the "network hang" occurs when the two servers replicate domain information each other.

I am very worried about this and really desperate. Please Help.

thank you very much.

Albert.-