Cannot access Exchange 2013 Admin Center. It states  certificate revoked

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Cannot access Exchange 2013 Admin Center. It states  

This organization's certificate has been revoked. Certificate is good until 2020 and the binding is set to that too. Not sure what is next?
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the solution would be to use a "self-signed cert", exchange always use one by default (the time you install it), so let's check if that one work. at least to enter the admin pane.

1. get all certs on the exchange server

To work with exchange module on a regular ps console do the following.
Open a regular powershell console  (this works as well if you run it as administrator)

Add-PSSnapin Microsoft.Exchange.Management.PowerShell.SnapIn

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and then use

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Search for a name similar to the server (mail.domain.local) or something like that, copy the thumbprint

2 Assign the exchange services to that cert
- Copy the thumbprint from the previous step
- Run
Get-ExchangeCertificate -thumbprint <paste thumbprint here> | Enable-ExchangeCertificate -Services IIS,SMTP

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3- Go to IIS and check the Bindings
 - For the Front End make sure that the Certificate is the one you selected
 - and for the backed, you should probably do a change in here since is not done automatically.
  - Reset iis (you can use the admin ps console and run "iisreset")

With after that reset, try to open the EAC and you should be able to do a new Request for the renewal of that cert


This solution worked.

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