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How do I switch NICs in SBS2003?

Posted on 2009-05-14
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Last Modified: 2013-11-09
I have a SBS2003 server with everything working fine. It has a motherboard with dual NICs, both working. The server is set up to use only one, and the other has been disabled since the last network config.

Today I noticed the NIC in use is 10/100, while the disabled one is 10/100/1000. I would like to switch operations, so that the server uses the gigabit port instead.

I did this on a non-sbs server by changing the IP address of the second NIC to exactly match the first, ignore the errors, swap the cable, reboot and everything is fine.

Not so in SBS. I tried that and while the server could still get online, everyone else on the network lost all services from dhcp to email. So, what have I done wrong?

What is the proper procedure to SWITCH NICs in SBS2003?
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Question by:Elixir2
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by:Elixir2
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PS: I already tried the steps in article 21664193, but TechSoEasy's link was bad.
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by:Elixir2
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by:da_Sirob
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just curious, is the rest of your network Gigabit?
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by:Elixir2
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Yes, it is. That's why this switch is necessary.
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by:Ashleigh_IT
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Enable the Gigabit nic, disable the other one. Then re-run the Email and Internet Connection Wizard.
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by:Elixir2
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I did that but manually changed IP addresses in the NIC. Should I try it again, without manually changing anything and let the EICW do it all?
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by:Ashleigh_IT
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Yes - let the EICW do it. You may want to set the TCP/IP settings on the 'old' nic to DHCP first and then disable it. Did exactly the same thing a couple of weeks ago (albeit with a new additional Nic) and it worked without a hitch.
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Nope, it never worked. When running through it with DHCP enabled as you suggested, we see this error:
"SBS requires static IP address for local connections. Open network connections and change to static."
After doing this, it all appears to work fine, and as I said in the original questions, the server can get online but email and all network services are down for the rest of the network.

As an aside, I used Acronis with Universal Restore to move the entire server from SATA to RAID on brand new hardware. It's up and running (yea!) and faster than ever.

Never did fix this problem with the dual NICs... I think it has to do with bindings.
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