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Can't see other subnets on network

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13 replies

by whatme?

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I have a domain spread across a 5 site geographic region. I have created a single domain with a subnet for each region. I don;t have real fast connections but each region was able to join the domain. Replication is bad though at times. At each site I am only able to "see" only the computers in that site. What must I do to fix this problem

13 replies

by navjun

Have you treid pinging the other computers in the other sites??
are you sure your connection is up when u try to see those computers?
mybe you can try to brows those computers by using UNC (\\computer name)

Can you tell us how slow is your connection is?
good luck

by whatme?

Yep.. Can ping them all. Just can't see them in network neighborhood. Should see all the computers in the single domain even though tgey are on separate subnets.

by shortbus

Do you have seperate DNS servers in each site? Are they Active Directory Integrated or Standard?

If they're AD integrated then the replication is your problem. The DNS topology is transfered through Active Directory's replication process so if AD is having a hard time replicating, then your DNS information will be out of date or non-existant.

If you're using standard primary zones at each site then you can "transfer" the database to standard secondary zones in every other site. So, you'd end up with 5 zones at each site. 4 secondary's and 1 primary.

Hope this helps,

Bus

by whatme?

Maybe you are on the right track. I suspect replication problems but don't know how to solve it yet. All have their own AD DNSs. I just tried to replicate manually but it says it will do it later. Any ideas?

by jordana

Are you using DHCP? If so, ensure you set DHCP to update DNS. If not, make sure there are entries for all your clients in DNS.

Or you could install WINS....

Jordan

by whatme?

All done.... at all sites on all dns servers... only each site can see their own workstations

by quadjoe

Try checking your subnet mask on your ip addresses to see if they are the same. Do this by right clicking on my network places go to properties then check under TCP/IP properties. If they don't have the same subnet mask they won't see each other.

by whatme?

Good reading.... but a lot. I have a small domain w/5 sites. The answers may very well lie in that reading but who the heck can understand what they are saying. I have a single root domain model w/no child domains. I had each geographic site in itsown site. I moved them all to the headoffice site and replication started working fine and everything seems well now. Still don't know if this was the right way of doing it but it worked.... for the time being.

Thanks

by sean wyatt

My guess would be that your routers are not passing traffic on all the necessary ports. Check these MS Knowledge Base articles to ensure the proper ports are open:

Q289241 - Active Directory ports
Q150543 - DNS and other service ports

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