Trust between two domains

Trust between two domains
We have two domains on our network. Domain A and B. There is one way trust between domain A and B. Recently we have experienced network issues on domain B and i had to reconfigure network cards on one of the hosts. I think that threw off trust relationship between both domains. I fixed the network related issues, but now users on Domain B are experiencing authentication issues.  I checked trust settings on Domain B DC, it seems to be down. Could i have reset the trust after i reconfigured the nics? How to reestablish the trust without further issues? Thank you for your advice in advanced.

Follow up question:
Domain B has a DC with class A DHCP scope. When i reconfigured the nic cards, DHCP role went down. Scope is down. Doesn't seem to want to come back up. Any suggestions how to troubleshoot this issue?
O GChief Technology Officer, Co-FounderAsked:
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MichelangeloConsultantCommented:
Did you update relevant dns recordsfor the DCs that changed name?
You will probably have to manually delete A records for the domain controller(s) and manually update the name servers for the forwarders in each child domain and the root domain in case your infrastructure has some of them.
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MichelangeloConsultantCommented:
Hi,
Any luck with your issue?
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O GChief Technology Officer, Co-FounderAuthor Commented:
Yes, thank you michelangelo i followed your advise and fixed the issue.
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O GChief Technology Officer, Co-FounderAuthor Commented:
Yes, thank you michelangelo i followed your advise and fixed the issue.
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