trust relationship between the domain was lost in exchange 2013 member server

Hi All
      I have a exchange 2013 running on server 2008 R2 which is a member server (not a DC), recently when i have tired to login to the exchange , it said the trust relationship between the domain was lost" in this suitation, shall i join the echange 2013 into the workgroup, and delete the exchange 2013 hostname from ad user & computer in the DC and rejoin this exchange from workgroup and domain again ? have checked the exchange server dns was typed in the two dc name already, and could lookup the domain name probably, any idea why ?
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AmitIT ArchitectCommented:
Here are your options:

1) If you have local admin id and password. Login to the server, stop/disable exchange service and then rejoin. Restart the server.
2) Login and enable Exchange service and restart one more time.

Note: If with above steps. Exchange didn't came up. Then  you might need to perform Exchange recovery, by using recover switch.
Kamal KhaleefaInformation Security SpecialistCommented:
Just rejoin to domain
It happen when corruption happen to ad record
To be 100% sure check doc service on ex2013 Sri
And dcom
If both running normal then all u need is rejoin server to domain

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piaakitAuthor Commented:
ok let me try to rejoin the exchange server to the domain, thanks everyone !
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piaakitAuthor Commented:
do i have to delete the exchange computer account from DC, before the rejoin ?
Kamal KhaleefaInformation Security SpecialistCommented:
Move the server to workgroup
Then rejoin
And run the following command first on dc
Get-adcomputer -name xxxx |fl
And save the result by adding >>d:\folder\out.csv to further  investigation
If move the server to workgroup didnot delete ad computer record then delete it manual
Put first run the command and save the result
piaakitAuthor Commented:
found the problem, the DC with all the roles courrpt, i have resized all the roles in other DC, and metadata clean up the problem dc, problem resolved, thanks everyone help!
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