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SBS 2011 no network after motherboard replacement

Posted on 2015-02-17
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Last Modified: 2016-11-23
Hi

We have a Dell 520r server which we updating with the Dell firmware, driver and bios updarte over the weekend.  The lifecycle/Idrac update failed and the server started after the lifecycle controller disabled itself.

This was ok the operating system operated fine but the fans we running at full RPM due to the controller being disabled.

A replacement motherboard was installed by DELL but when the server was restarted there was no network.

ipconfig showed only tunneling, no  nics listed. could not access device manager etc as without a network SBS struggles.

We reverted back to the original motherboard and updated chipset and nic drivers. Again the SBS was fully operational.

Went back to the new motherboard but the network issue remained.

Have tried disabling nics, enabling nics, network cable in and out of either or both nics.

Dell are saying its an o/s corruption, as the server runs linux from usB stick!!

Any ideas?

Thanks in advance.
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Question by:Potts2002
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10 Comments
 
LVL 24

Expert Comment

by:DMTechGrooup
ID: 40614598
Some BIOS let you disable onboard NICs, sound cards, etc.  Have you dug through the BIOS settings?
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Author Comment

by:Potts2002
ID: 40614643
Yes, tried that both enabling and disabling them which made no difference.

Also disabled the onboard nics and installed a pcie card but no difference.
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LVL 24

Expert Comment

by:DMTechGrooup
ID: 40614657
Under device manager any unknown devices?  What about when you show hidden devices?

I have seen else where that someone tried using a new HDD, install Windows and still no NICs and it was a bad MB.. Tell Dell you installed a fresh HDD and OS and still no NICs.. they love to follow their scripts and never think outside the box.
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Author Comment

by:Potts2002
ID: 40614707
Can't access device manager or anything relating to the networking.

Without networking SBS 2011 does not function properly.
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LVL 24

Expert Comment

by:DMTechGrooup
ID: 40614726
Do you have any bootable OS discs?  Otherwise you could try a new HDD and reload an OS onto the machine.  If it were me I would go the tell Dell you tried everything send another MB.
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Author Comment

by:Potts2002
ID: 40614741
We had the original motherboard with the failed lifecycle/idrac and we have already had 2 additional motherboards both presented the same way.
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LVL 24

Expert Comment

by:DMTechGrooup
ID: 40614754
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Accepted Solution

by:
Potts2002 earned 0 total points
ID: 40622100
The solution involved a third replacement motherboard, this time different part number and newer manufacture date.

The server when started again had no networking and we were starting to setup and interrogate the iDRAC card. At around 40 minutes after the startup suddenly the o/s started installing the network cards and the server was operational.

All rather strange!!
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Author Closing Comment

by:Potts2002
ID: 40641448
A unique situation.
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Expert Comment

by:dozwold
ID: 40710316
I can confirm I had the same problem with a Dell T420 with SBS2011. They replaced the motherboard (due to a faulty nic first time, then a faulty RAM slot second time) and no network connectivity even after a reboot, and no Networks showing at all let alone a network card showing in windows, but when I opened device Manager, the NICS were actually there but with no drivers. even trying to force install drivers did not work. Funny thing is we just waited and around 30 minutes after the NICS were suddenly found. It seems after a motherboard replacement and SBS 2011, the server goes through loads of slow process starts process after process, so just wait 30 mins. Suddenly it will say installing Broadcom adapters  out the blue. Both times were around 30 mins each after motherboard change before this happened.
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