I can´t access EAC by CAS name server

Question

Hi people,
I´ve just installed my new Exchange 2013 SP1 environment in a new domain.
I´ve installed two Mailbox server and two Client Access servers, I´ve started the installation with two mailbox serves and to continue I´ve installed the Client Access servers. When I finished the installation in each server I restarted it.
Now, my problema is the Access to Exchange Administration Center.
I´m trying with https://servercas1.domain.local/ecp or
https://servercas2.domain.local/ecp
In both cases, Internet explorer sais "this page can´t be displayed"
I´ve checked the Ecpvirtualdirectory in PowerShell, and internal url is correct:
https://servercas1.domain.local/ecp in the first CAS and
https://servercas2.domain.local/ecp in the second CAS.
I´ve tried Access by IP, but with the same result...
Finally, I´ve tried the Access with https://localhost/ecp and it Works!
But... I want to Access by name, no by localhost....
Someone knows why I can´t Access by name??
I understand the Access to EAC is only possible through the CAS, because in the Mailbox doesnt work it, right?
Thanks and Best regards.

Answer 1

Hi Allen,
First of all, thanks for your reply.
In my first message I wrote about my Environment, this is:
- 2 Servers DCs (2012 R2 with 2012R domain/forest level)
- 2 Servers Mailboxes Exchange Server 2013 SP1 (Windows Server 2012 R2)
- 2 Servers Client Access Exchange Server 2013 SP1 (Windows Server 2012 R2)
My stepts to installation were:
1.- Install new DC and create new domain. After this install second DC in the same domain.
2.- Install OS in 4 servers for Exchange with Windows Server 2012 R2. Join these servers in domain.
3.- Install Prerequisites in 4 Exchange Servers:
Install-WindowsFeature AS-HTTP-Activation, Desktop-Experience, NET-Framework-45-Features, RPC-over-HTTP-proxy, RSAT-Clustering, RSAT-Clustering-CmdInterface, RSAT-Clustering-Mgmt,
RSAT-Clustering-PowerShell, Web-Mgmt-Console, WAS-Process-Model, Web-Asp-Net45, Web-Basic-Auth, Web-Client-Auth, Web-Digest-Auth, Web-Dir-Browsing, Web-Dyn-Compression, Web-Http-Errors, Web-Http-Logging, Web-Http-Redirect, Web-Http-Tracing, Web-ISAPI-Ext,
Web-ISAPI-Filter, Web-Lgcy-Mgmt-Console, Web-Metabase, Web-Mgmt-Console, Web-Mgmt-Service, Web-Net-Ext45, Web-Request-Monitor, Web-Server, Web-Stat-Compression, Web-Static-Content, Web-Windows-Auth, Web-WMI, Windows-Identity-Foundation
4.- Install Microsoft Unified Communications Managed API 4.0 in 4 Exchange Servers.
5.- Install Microsoft Office 2010 Filter Pack x64 and SP1 only in 2 Mailbox Servers
6.- Extend Active Directory Schema: 
Setup.exe /PrepareSchema /IAcceptExchangeServerLicenseTerms
7.- Prepare Active Directory:
Setup.exe /PrepareAD /OrganizationName:"Exchange Organization" /IAcceptExchangeServerLicenseTerms
8.- Prepare Domain:
setup /PrepareAD /IAcceptExchangeServerLicenseTerms
9.- Install Exchange Server 2013 SP1 in 2 Mailbox Servers
10.- Install Exchange Server 2013 SP1 in 2 Client Access Servers
11.- Reboot all Exchange Servers when finished the installation
After this, when I tried to access to Exchange Admin Center with https://servercas1.domain.local/ecp or https://servercas2.domain.local/ecp 
It fails with "this page can´t be displayed"
Only worked with https://localhost/ecp
In this moment is when I decided to write in the forum to share my problem. And I follow your recommendations...
But in this moment I can´t access Exchange Admin Center, about a problem with authentication...
This is the result for Get-EcpVirtualDirectory | FL Identity,*auth*,*URL*
Identity                      : servercas1\ecp (Default Web Site)
InternalAuthenticationMethods : {Basic, Fba}
BasicAuthentication           : True
WindowsAuthentication         : False
DigestAuthentication          : False
FormsAuthentication           : True
LiveIdAuthentication          : False
AdfsAuthentication            : False
OAuthAuthentication           : False
ExternalAuthenticationMethods : {Fba}
InternalUrl                   : https://servercas1.domain.local/ecp
ExternalUrl                   :
Identity                      : servercas2\ecp (Default Web Site)
InternalAuthenticationMethods : {Basic, Fba}
BasicAuthentication           : True
WindowsAuthentication         : False
DigestAuthentication          : False
FormsAuthentication           : True
LiveIdAuthentication          : False
AdfsAuthentication            : False
OAuthAuthentication           : False
ExternalAuthenticationMethods : {Fba}
InternalUrl                   : https://servercas2.domain.local/ecp
ExternalUrl                   :
I don´t have ayn problem with DNS... It works!
Thanks for your reply
Best Regards,