Solved

Only 10 out of 12 network interfaces are visible to the OS

Posted on 2011-09-14
4
190 Views
Last Modified: 2012-05-12
Hi Experts,

I am experiencing this issue that only 10 out of 12 network interfaces are visible to the OS (Windows 2008 R2 Enterprise).

We have 2 Intel 10Gb iSCSI cards with 2 interfaces each, and 2 Broadcom 1Gb cards with 4 interfaces each.

I am seeing all 4 interfaces for Intel and only 6 interfaces for Broadcom.

Any advice will be appreciated.

Jimmy
0
Comment
Question by:jimmy1829
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
  • 2
4 Comments
 
LVL 17

Expert Comment

by:bigeven2002
ID: 36538695
Hello,

On the broadcoms, can you tell if the 2 not working are on the same card or 1 on each?  If both are on the same card, that would indicate a possible failure on that card.  In the 2 that are not responsive, does it show any link lights on the card for those ports?
0
 

Author Comment

by:jimmy1829
ID: 36538724
thanks, both are on the same card, and it does not seem to light up when I plug in the cables.
0
 
LVL 17

Accepted Solution

by:
bigeven2002 earned 500 total points
ID: 36539791
I see.  The only things I can think of:

First, try 2 different network cables for both problem ports.  

Second, try 2 different ports on your switch.  If you don't have any spare ports, unplug one of the working ones and plug the bad one in to see whether or not it is a bad port on the switch.  

Third, go to network adapter properties in windows to see if these ports on the card were mistakenly disabled.

Lastly, if you are able to take the server offline, open it up and try a different PCI-E slot for the problem card if you have one open.

If none of the above are successful, then the card itself has gone bad and needs to be replaced.
0
 

Author Comment

by:jimmy1829
ID: 36546798
thanks, I will give it a shot.
0

Featured Post

Instantly Create Instructional Tutorials

Contextual Guidance at the moment of need helps your employees adopt to new software or processes instantly. Boost knowledge retention and employee engagement step-by-step with one easy solution.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

PRTG Network Monitor lets you monitor your bandwidth usage, so you know who is using up your bandwidth, and what they're using it for.
A safe way to clean winsxs folder from your windows server 2008 R2 editions
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
In this tutorial you'll learn about bandwidth monitoring with flows and packet sniffing with our network monitoring solution PRTG Network Monitor (https://www.paessler.com/prtg). If you're interested in additional methods for monitoring bandwidt…

734 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question