Re: error "duplicate name exists on the network"


"Lanwench [MVP - Exchange]" wrote:



In news:17A18E56-0267-460E-95F2-C7904386F42D@xxxxxxxxxxxxx,
associates <associates@xxxxxxxxxxxxxxxxxxxxxxxxx> typed:
Thank you all for your reply.

No, i don't think there are two NICs in the SBS server because i
haven't
done anything to it in terms of adding any hardwares. It's still a new
machine that i bought last week. There is only one point where i can
plug in my network card in the server's box.

However, i have a few PCs including this SBS machine connecting to
the same router. It might detect a duplicate name when trying to
connect to the network.

Yes.

And i don't use WINS since i have enabled the
DHCP on that router.

Well, a) that doesn't mean you can't use WINS, b) it doesn't mean that
NetBIOS name conflicts can't occur and c) it's really a lot better to use
your SBS box as a DHCP server. But that's neither here nor there.

So the router is responsible for providing IP
address to computers attached to it.

When receiving this message, there is only two PCs connecting to the
router. The other PCs are not on the network at the time.

I suppose their names could still be remembered. Did you check them all,
connected or no?


This morning, i did another check again because i still can't find other
computers with the same name. So, i turned off all the computers including
the sbs and turned on just the sbs machine. Behold, that message still came
up on the sbs server. Strange


Are you joining all the computers and servers to the domain ? If you create
the computer accounts and use http://servername/connectcomputer to join
them, you'll know for sure that you don't have conflicts, and you'll also
have everything functioning as it should be.


No, not yet. Because this is my first time using the sbs 2003. Before i can
replace the old computer served as a file server at the moment with this sbs
machine, i need to ensure that i know how this sbs server works first. So for
an experience purpose, i just managed to get one laptop of mine to join to
the domain and connected to the sbs and that works fine. They both connected
happily.

Also make sure that you aren't on a hub/switch shared with other
computers/networks....those would all count, too.


This, maybe the cause. Some of the PCs including the sbs server are
connected to the hub due to the limited number of ports on my other router.

But then, i
checked this PC and found that it has a different computer name under
control panel -> system.

For example, the computer name for sbs server is MWH.mwhserver.local
and for the other pc is fileserver.

Your help is greatly appreciated.

Thank you

"Merv Porter [SBS-MVP]" wrote:

Do you have 2 network cards in the SBS server with both of them
plugged into the same switch or router?

--
Merv Porter [SBS MVP]
===================================
"associates" <associates@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:F8878262-2E4C-4589-89C2-8B78D5D46EFA@xxxxxxxxxxxxxxxx
Hi,

I was wondering if anyone might be able to help me here. I'm not
sure why i've been getting this message everytime i started the SBS
server machine. The message said "Duplicate Name exists on the
network". What does it mean?.
I admit that i have another PC used as a fileserver but it's got a
different
computer name and it's in a workgroup, not domain. At the moment,
i've been
testing to connect my laptop to the server before it's officially
used on my
network.

Thank you in advance



.

Relevant Pages

  • Re: VPN Question
    ... The external router is giving addresses in the 192.168.1.xxx range and the ... SBS server is giving addresses in the 192.168.2.xxx range so they are ... As far as accessing resources, after making the VPN connection, I have tried ...
    (microsoft.public.windows.server.sbs)
  • Re: reinstall SBS on new hardware
    ... On the new SBS server, configure a static IP on the LAN network ... Make the new SBS server an Active Directory Global Catalog Server. ...
    (microsoft.public.windows.server.sbs)
  • SBS 2003 w/ 2 Linksys routers
    ... I've been using my SBS 2003 server fine with my Linksys BEFSR41 router for a ... My SBS server ... etc) connecting wirelessly will be outside of my SBS network. ...
    (microsoft.public.windows.server.sbs)
  • Re: error "duplicate name exists on the network"
    ... computers including the sbs and turned on just the sbs machine. ... that message still came up on the sbs server. ... What other router? ... The reason for having this VPN router is to let my home ...
    (microsoft.public.windows.server.sbs)
  • Re: network topology
    ... installed the wireless router with it's own ISP assigned IP. ... So get a second router to be used by the SBS server and configure the External IP as it is now ...
    (microsoft.public.windows.server.sbs)