There are no more endpoints available from the endpoint mapper. (Exception from HRESULT: 0x800706D9

IT Problem

When installing exchange 2010, the install fails on installing the Hub Transport Role, you will see the error below.

Hub Transport Role
Failed

Error:
The following error was generated when “$error.Clear();
if (!(get-service MSExchangeADTopology* | where {$_.name -eq “MSExchangeADTopology”}))
{
install-ADTopologyService
}
” was run: “There are no more endpoints available from the endpoint mapper. (Exception from HRESULT: 0x800706D9)”.

There are no more endpoints available from the endpoint mapper. (Exception from HRESULT: 0x800706D9)
Click here for help… http://technet.microsoft.com/en-US/library/ms.exch.err.default(EXCHG.141).aspx?v=14.1.218.11&e=ms.exch.err.Ex88D115&l=0&cl=cp

Elapsed Time: 00:00:21

This could be down to one of two things or both if your unlucky.

IT Solution

The first thing to make sure is that your firewall service is started, this must be started for the exchange install to be successful.

So click start run and enter services.msc  make sure the service called Windows Firewall is started and set to automatic.

Then we also need to check the servers DNS settings. Make sure they are set correctley to point to your DNS server, this error can also point to incorrect DNS forwarding.Also if the server is a Domain Controller make sure that the forwarders are also set correctly.

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