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check in dssite.msc if the site link and connection object between A and B are still there. You can also delete the connection objects from both sides, then re-run KCC to discover the topology. (right click on dc, all tasks, check knowledge...something)<br />
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if KCC runs fine, everything should be back shortly<br />
otherwise, post back the error message of KCC.
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check in dssite.msc if the site link and connection object between A and B are still there. You can also delete the connection objects from both sides, then re-run KCC to discover the topology. (right click on dc, all tasks, check knowledge...something)

if KCC runs fine, everything should be back shortly
otherwise, post back the error message of KCC.

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I am getting Event ID 1863 on two 2003 servers in same domain. &nbsp;Server A is in location A. &nbsp;Server B is in location B. &nbsp;The VPN that connected these two was down for about one month. &nbsp;Now the VPN is back up and I can't get them to sync. &nbsp;Any suggestions?
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I am getting Event ID 1863 on two 2003 servers in same domain.  Server A is in location A.  Server B is in location B.  The VPN that connected these two was down for about one month.  Now the VPN is back up and I can't get them to sync.  Any suggestions?

Event ID 1863 is logging  help???

Windows Server 2003 was based on Windows XP and was released in four editions: Web, Standard, Enterprise and Datacenter. It also had derivative versions for clusters, storage and Microsoft’s Small Business Server. Important upgrades included integrating Internet Information Services (IIS), improvements to Active Directory (AD) and Group Policy (GP), and the migration to Automated System Recovery (ASR).

Windows Server 2003

Active Directory (AD) is a Microsoft brand for identity-related capabilities. In the on-premises world, Windows Server AD provides a set of identity capabilities and services, and is hugely popular (88% of Fortune 1000 and 95% of enterprises use AD). This topic includes all things Active Directory including DNS, Group Policy, DFS, troubleshooting, ADFS, and all other topics under the Microsoft AD and identity umbrella.