Unable to logon to Exchange Admin Center - bad username/password

Dear Experts,

We are in the middle of testing a migration of an SBS 2011 (running Exchange 2010 SP1) over to Server 2012 R2 with Exchange 2013 installed. The new 2012 R2 has all FSMO roles.

After the successful Installation of Exchange 2013, we are unable to logon to the Exchange Admin Center (https://localhost/ecp). Says bad username or password. My admin is a member of the Organization Management Exchange Security Group, along with "Organisation-Admins" and "Schema-Admins" .

Any ideas? Thanks, Oliver


April 17th, 2015 5:15pm

In powershell we created a test admin account on the Exchange 2013 DB. Were not able to logon to EAC either on the Server or on a Workstation. Tried Domain\username and just username. Tried both URLs: https://serverhostname.domain.local/ecp?ExchClientVer=15 and https://serverhostname.domain.local/ecp?ExchClientVer=14. Nothing worked!
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April 20th, 2015 6:21am

It might be worth trying to connect to the ECP and then checking the IIS logs on the 2013 server and see if that gives you any better messages.

Does OWA work?

Did you make any changes in IIS?

April 20th, 2015 9:54am

Default installation of 2012R2. Installed the ADDS role and other requirements for Exchange 2013. Default installation of Exchange 2013 and CU9. No changes whatsoever. No relevant logs in the Event Viewer at time of login failures. Which logs in IIS should I check - path/name? Thanks.
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April 20th, 2015 9:59am

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