Exchange 2013 new install - topology error

Getting these errors:

Log Name:      Application
Source:        MSExchangeADTopology
Date:          4/20/2015 1:55:47 PM
Event ID:      2142
Task Category: Topology
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      Exch13Server1.domain.com
Description:
Process Microsoft.Exchange.Directory.TopologyService.exe (PID=1548) Forest domain.com. Topology discovery failed, error details
No Minimal Required Number of Suitable Directory Servers Found in Forest domain.com Site Default-First-Site-Name and connected Sites..
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="MSExchangeADTopology" />
    <EventID Qualifiers="49156">2142</EventID>
    <Level>2</Level>
    <Task>3</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2015-04-20T17:55:47.000000000Z" />
    <EventRecordID>3935559</EventRecordID>
    <Channel>Application</Channel>
    <Computer>Exch13Server1.domain.com</Computer>
    <Security />
  </System>
  <EventData>
    <Data>Microsoft.Exchange.Directory.TopologyService.exe</Data>
    <Data>1548</Data>
    <Data>domain.com</Data>
    <Data>No Minimal Required Number of Suitable Directory Servers Found in Forest domain.com Site Default-First-Site-Name and connected Sites.</Data>
  </EventData>
</Event>




Log Name:      Application
Source:        MSExchange ADAccess
Date:          4/20/2015 1:55:47 PM
Event ID:      4027
Task Category: General
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      Exch13Server1.domain.com
Description:
Process MSExchangeHMWorker.exe (ExHMWorker) (PID=5560). WCF request (Get Servers for domain.com) to the Microsoft Exchange Active Directory Topology service on server (TopologyClientTcpEndpoint (localhost)) failed. Make sure that the service is running. In addition, make sure that the network ports that are used by Microsoft Exchange Active Directory Topology service are not blocked by a firewall. The WCF call was retried 3 time(s). Error Details
 No Minimal Required Number of Suitable Directory Servers Found in Forest domain.com Site Default-First-Site-Name and connected Sites.
   at Microsoft.Exchange.Directory.TopologyService.ADTopologyDiscovery.Discover()
   at Microsoft.Exchange.Directory.TopologyService.ADTopologyDiscovery.DoWork(CancellationToken cancellationToken)
   at Microsoft.Exchange.Directory.TopologyService.Common.WorkItem`1.Execute(CancellationToken joinedToken)
   at Microsoft.Exchange.Directory.TopologyService.Common.WorkItem`1.<>c__DisplayClass6.<StartExecuting>b__4()
   at System.Threading.Tasks.Task.Execute()
   at Microsoft.Exchange.Directory.TopologyService.TopologyDiscoveryManager.EndGetTopology(IAsyncResult ar)
   at Microsoft.Exchange.Directory.TopologyService.TopologyService.InternalEndGetServersForRole(IAsyncResult result)
   at Microsoft.Exchange.Directory.TopologyService.TopologyService.<>c__DisplayClassa.<EndGetServersForRole>b__9()
   at Microsoft.Exchange.Directory.TopologyService.TopologyService.ExecuteServiceCall(Action action)
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="MSExchange ADAccess" />
    <EventID Qualifiers="49156">4027</EventID>
    <Level>2</Level>
    <Task>1</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2015-04-20T17:55:47.000000000Z" />
    <EventRecordID>3935560</EventRecordID>
    <Channel>Application</Channel>
    <Computer>Exch13Server1.domain.com</Computer>
    <Security />
  </System>
  <EventData>
    <Data>MSExchangeHMWorker.exe (ExHMWorker)</Data>
    <Data>5560</Data>
    <Data>Get Servers for domain.com</Data>
    <Data>TopologyClientTcpEndpoint (localhost)</Data>
    <Data>3</Data>
    <Data>No Minimal Required Number of Suitable Directory Servers Found in Forest domain.com Site Default-First-Site-Name and connected Sites.
   at Microsoft.Exchange.Directory.TopologyService.ADTopologyDiscovery.Discover()
   at Microsoft.Exchange.Directory.TopologyService.ADTopologyDiscovery.DoWork(CancellationToken cancellationToken)
   at Microsoft.Exchange.Directory.TopologyService.Common.WorkItem`1.Execute(CancellationToken joinedToken)
   at Microsoft.Exchange.Directory.TopologyService.Common.WorkItem`1.&lt;&gt;c__DisplayClass6.&lt;StartExecuting&gt;b__4()
   at System.Threading.Tasks.Task.Execute()
   at Microsoft.Exchange.Directory.TopologyService.TopologyDiscoveryManager.EndGetTopology(IAsyncResult ar)
   at Microsoft.Exchange.Directory.TopologyService.TopologyService.InternalEndGetServersForRole(IAsyncResult result)
   at Microsoft.Exchange.Directory.TopologyService.TopologyService.&lt;&gt;c__DisplayClassa.&lt;EndGetServersForRole&gt;b__9()
   at Microsoft.Exchange.Directory.TopologyService.TopologyService.ExecuteServiceCall(Action action)</Data>
  </EventData>
</Event>
nourbenAsked:
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Vaseem MohammedCommented:
See if your domain controllers are accessible from exchange servers.
any firewall application installed on exchange server which might be blocking access to domain controllers.
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Md. MojahidCommented:
1.Computer Configuration
2.Windows Settings
3.Security Settings
4.User Rights Assignment
5.Mange auditing and security log
Add "Exchange Servers" or "Exchange Enterprise Servers" to that policy.

gpupdate /force on the domain controller and restart the Exchange Services

Solution by http://bloke.org/windows/exchange-2003-2007-2010-topology-discovery-failed-error-0x80040a02-dsc_e_no_suitable_cdc/#comment-3982
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nourbenAuthor Commented:
Bingo, the default domain controller was removed and a more secure one was applied and the "Exchange Servers" was missing, working like charm, Merci Beaucoup.
0
GarethABCCommented:
Thx Md. Mojahid this helped me a lot
0
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