I have a single forest with multiple domains.
nnt.com (root domain)
uk.nnt.com (child domain)
usa.nnt.com (child domain)
I have a third party DNS server where all my clients point to.
The third party DNS server is synchronized with my child domains.
My client pc’s are joint to uk.nnt.com domain and can access/map any shares via name to a file server in the uk.nnt.com domain with no problems.
My problem is when users want to access/map shares to a file server in the usa.nnt.com domain they get error.
The user name you typed is the same as the user name you logged in with.
That user name has already been tried. A domain controller cannot be found to very that user name.
When I use ip address of file server it works and when I try to access/map shares in usa.nnt.com domain from a pc which is not joint to domain it will ask for password and when I type in it works.
Please advice/help why can’t my pc’s joint to uk.nnt.com domain access/map shares to the file server in usa.nnt.com domain.
I can ping successfully the FQDN of file server and it can resolve ip address to name.
I also can resolve the DC.
My trust between domains is also working as I can use username and password of user in uk.nnt.com domain to access files in usa.nnt.com domain when pc is not joining to any domain.