DC fail replicate sysvol

Recently work with the customer , their DC failed replicate with other DC in sysvol

Found out that in ADUC\system\DFS-configuartion\Topology
Missing the DC object

We cannot create that in the ADUC or ADSI neither

After opened case to Microsoft , they gave us below regkey and restart the DFSR services

HKLM\SYSTEM\CurrentControlset\Services\DFSR\Parameter\Sysvol\Promoting
"Sysvol Information is Committed"=dword:00000001

HKLM\SYSTEM\CurrentControlset\Services\DFSR\Parameter\Sysvol\Promoting\domainABC.local
"Is Primary"=dword:00000000
"Parent Computer"=""
"Replicated Folder Name"="domainabc.local"
"Replicated Folder Root"="C:\windows\sysvol\domain"
"Replicated Folder Root Set"="C:\windows\sysvol\domainABC.local"
"Replicated Folder Root Stage"="C:\windows\sysvol\staging\domainABC.local"
"Replication Group Name"="DomainABC.local"
"Replication Group Type"="Domain"

But still cannot, after i study a while, because missing the Parent Computer.
It created the object but dont know where to replicate from.
you need to
HKLM\SYSTEM\CurrentControlset\Services\DFSR\Parameter\Sysvol\Seeding\
"Parent Computer"="AnotherGoodDC.domainABC.local"


最近幫一個客戶解決DC 複製問題,他們不是全死只是GPO replicate 不到
最後發覺在ADUC DFSR-configuaration 裏,missing 一個DC object


用上面的regkey and 重啓DFSR service 後，問題就解決了