Network Computers Browsing

I have 03 network segments (subnets) in this domain, say A, B, C. There were 02 Windows 2003 domain controllers in this domain located in Segment A. I recently demoted one of them, and replaced it with a Windows 2008 R2 domain Controller. Now computers in segment B and C (both on WAN) cannot browse computers/servers in segment A.
TajammalwAsked:
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TajammalwAuthor Commented:
Where are your experts for addressing my problem. I thought 500 points were the maximum I could give at a time. If not please suggest the number that may attract your experts' attention. Thanks.
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Larry Struckmeyer MVPCommented:
Hi:

From any workstation open a command prompt and issue the command route /?  This will give you the parameters.  Now issue route print and notice if the command lists the other segments.  I can't tell from you post, but guessing that from A you can see B and C, but the reverse, according to your question is not possible.  Thinking you will have to add the routes to A on both B and C.  Getting this right takes a bit of practice and without knowing the rest of the settings we could not assist.  You would not want to add the persistent switch until you get it right.

An alternative might be the DNS was hosted on the server that is gone, but if so no internal resolution should work.
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bbaoIT ConsultantCommented:
> Now computers in segment B and C (both on WAN) cannot browse computers/servers in segment A

it seems your used WINS for computer browsing over WAN in the past, and it was pure W2K3 based WINS, which was not enabled on W2K8R2 by default. is it correct?

check below document about how to intall Windows Internent Name Servie (WINS) on W2K8R2 and also the YouTube video.

https://technet.microsoft.com/en-au/library/dd894432(v=ws1.0).aspx

http://www.youtube..com/watch?v=CBsU92nraDk
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TajammalwAuthor Commented:
It is not a network issue but a browsing service issue. I learnt that when you introduce your 1st Windows 2008 R2 domain controller in a windows 2003 domain, the WAN segments have this issue. For example, this problem was not experienced before this Windows 2008 R2 DC was put in production. There is no issue for PCs in A to communicate with PCs on B and C, and likewise PCs in B and C can communicate with PCs in A. But when I open Network Places on PCs in B or C, I am unable to view PCs in A. From A too I am unable to view PCs in B or C
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Larry Struckmeyer MVPCommented:
There is no issue for PCs in A to communicate with PCs on B and C, and likewise PCs in B and C can communicate with PCs in A. But when I open Network Places on PCs in B or C, I am unable to view PCs in A. From A too I am unable to view PCs in B or C

By communicate you mean?
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TajammalwAuthor Commented:
Doesn't appear to work. Installed WINS on Windows 2008R2 DC. This domain has a WINS server already installed on the Forest DC Windows 2003 machine. (Can we have 02 WINS in a single domain?). WINS on 2008R2 DC replicating, and mapping records including PCs in B and C segments. But still can't see computers in A from B and C, and computers in B and C from A in network places.
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Larry Struckmeyer MVPCommented:
By communicate you mean?   If that means ping by IP but not by name either internal DNS is not correct or WINS is not correct.
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TajammalwAuthor Commented:
By name as well as IP address
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TajammalwAuthor Commented:
But accept it as the solution though I was able to fix the fix with the help of a similar blog before reading your post.
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TajammalwAuthor Commented:
Larry be given full points to solve this case. Thanks.
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TajammalwAuthor Commented:
The issue pertains to browser service which by default is disabled on Windows 2008 R2. My Windows 2008 R2 domain controller holds the PDC role, and by enabling the browser service on it and making it automatic start the dc became the master browser and the problem got fixed.
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