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Kcc Was Unable To Form A Complete Spanning Tree Network Topology

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You can get some direct help by Googling "KCC events every 15 minutes" But I would start with a health check on your servers by running a DCDIAG on your DC's Or, one or more domain controllers with this directory partition are unable to replicate the directory partition information. For those not familiar with the KCC, it is a distributed application that runs on every domain controller. Site2Falls\UC2 via RPC DC object GUID: eff06303-f0fd-4da7-9202-309788a780b0 Last attempt @ 2012-03-07 09:44:10 was successful. Check This Out

Try the following: 1. If necessary, create additional site links to ensure that all sites are connected appropriately. For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. REPLICATION-RECEIVED LATENCY WARNING UC1: Current time is 2012-03-07 09:29:25. https://technet.microsoft.com/en-us/library/cc756648(v=ws.10).aspx

Kcc Was Unable To Form A Complete Spanning Tree Network Topology

Post the results and we can help you further. 0 Message Author Comment by:bergquistcompany ID: 376911802012-03-07 Here is from the user domain controller UC1. Site2Falls\UC2 via RPC DC object GUID: eff06303-f0fd-4da7-9202-309788a780b0 Last attempt @ 2012-03-07 09:29:07 was successful. CN=Configuration,DC=domain,DC=com Last replication recieved from DC1 at 2012-03-06 09:19:04. I included sample events below.

But replication can also fail if your DC's are tombstoned. Note the sites that are listed under Sites in this site link. Doing initial required tests Testing server: Chanhassen\UC1 Starting test: Connectivity ......................... Portqry Tool DC=bergquistcompany,DC=com Site6\UC6 via RPC DC object GUID: 8cb5cc49-9c16-4c34-b7a7-8946780b54da Last attempt @ 2012-03-07 06:59:06 was successful.

Site4\UC4 via RPC DC object GUID: 3f934e97-3e4d-4865-815a-ed103a262e2f Last attempt @ 2012-03-07 09:44:07 was successful. Event Id 1865 And 1311 And 1566 In AD DS it is possible to create objects for which there is no physical network support. This section walks you through a quick check of your sites and site link bridges in Active Directory Sites and Services. https://support.microsoft.com/en-us/kb/944351 The KCC will attempt to use these objects to create connections between domain controllers, but replication cannot occur because the network does not exist to support the replication topology as it

If a domain controller was removed and the metadata for the server was not properly cleaned up, see Clean up server metadata (http://go.microsoft.com/fwlink/?LinkID=104231). Event Id 1311 Server 2012 Site 2: reporting the 1865 UC2 repadmin /kcc repadmin running command /kcc against server localhost Consistency To verify that the KCC is computing replication paths: Open a command prompt as an administrator. netdom resetpwd /server:a.b.c.d /userD:administrator /passwordD:administratorpassword) and note that the IP address should be one of the working DCs IP, preferably the PDC 3.

Event Id 1865 And 1311 And 1566

BigFork\UC5 via RPC DC object GUID: 465e40a2-beaa-4b88-9c69-165dd52a82c3 Last attempt @ 2012-03-07 09:44:05 was successful. https://technet.microsoft.com/en-us/library/cc949129(v=ws.10).aspx To open a command prompt as an administrator, click Start. Kcc Was Unable To Form A Complete Spanning Tree Network Topology Community Additions ADD Show: Inherited Protected Print Export (0) Print Export (0) Share IN THIS ARTICLE Is this page helpful? There Is Insufficient Site Connectivity Information For The Kcc To Create A Spanning Tree The Knowledge Consistency Checker (KCC) constructs and maintains the Active Directory replication topology automatically.

Testing 1 of them. Done gathering initial info. Doing initial required tests Testing server: SITEA\SERVER1 Starting test: Connectivity * Active Directory LDAP Services Check his comment is here This documentation is archived and is not being maintained. If the port blockage between the Destination DC and the Source DC cannot be resolved, configure the other DCs in the site where the errors are logged to be Preferred Bridgeheads Refer below link to fix the same also as mentioned above ensure required port are openand dns is set correctly on DC. Event Id 1311

Expand Inter-Site Transports. Now DC1 (the primary root domain controller also has 1925. read more... http://juicecoms.com/event-id/the-dns-server-was-unable-to-complete-directory-service-enumeration-of-zone-trustanchors.html Directory partition: DC=DomainDnsZones,DC=forest,DC=com There is insufficient site connectivity information in Active Directory Sites and Services for the KCC to create a spanning tree replication topology.

Last success @ 2012-03-06 09:13:35. Eventid: 0x8000061e Site1\DC1 via RPC DC object GUID: 76f9614e-a015-4bfd-8860-2381414d0c30 Last attempt @ 2012-03-07 09:40:02 failed, result 8456 (0x2108): The MCSE|MCSA:Messaging|MCTS|MCITP:Enterprise Adminitrator | My Blog Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.

As a result, the following list of sites cannot be reached from the local site.

EventID: 0xC25A001D Time Generated: 01/09/2015 00:44:22 (Event String could not be retrieved) An Error Event occured. If all is okay then it should be a DNS resolution problem. In Inter-Site I have 2 site links one for the user domain replcating to all remote sites domain controllers and one for the forest domain controller and backup. Event Id 1925 ForestDnsZones passed test CrossRefValidation Starting test: CheckSDRefDom .........................

Note whether the Bridge all site links check box is selected. Last success @ 2012-03-06 08:58:57. Ok, I’ll get to the point and explain how to identify the root cause and correct this. navigate here For each site that has servers hosting the partition that is referred to in the event message text, expand the site object and the server objects that it contains.

Site2Falls\UC2 via RPC DC object GUID: eff06303-f0fd-4da7-9202-309788a780b0 Last attempt @ 2012-03-07 09:44:07 was successful. Site4\UC4 via RPC DC object GUID: 3f934e97-3e4d-4865-815a-ed103a262e2f Last attempt @ 2012-03-07 09:29:01 was successful. The last success occurred at 2012-03-06 08:58:57. 52 failures have occurred since the last success. Run nltest /dsregdns on your DC's to re-register DNS records.

If you are experiencing a similar issue, please ask a related question Suggested Solutions Title # Comments Views Activity Binding MAC To Active Directory Domain 1 48 2016-12-06 Need to know BigFork\UC5 via RPC DC object GUID: 465e40a2-beaa-4b88-9c69-165dd52a82c3 Last attempt @ 2012-03-07 09:29:09 was successful. I personally don't like that option, because you'll Go to Solution 7 7 2 Participants Leon Fester(7 comments) LVL 26 Windows Server 200317 Active Directory15 Windows Networking4 bergquistcompany(7 comments) 14 Comments In the console tree, ensure that Sites is expanded.

Do not put private DNS IP addresses in forwarder list. 5.Assigning static IP address to DC if IP address is assigned by DHCP server to DC.It is strongly not recommended Troubleshooting As a result, the following list of sites cannot be reached from the local site.