Azure AD Application Proxy

[Bankesy]

Good morning everyone,

 

I switched on MFA this week, for a specific user group and aimed at Office 365. This appears to have broken some Azure AD Enterprise Applications that we had running and I don't understand why, when accessing these we now get the following error:

 

BadGateway:

This corporate app can't be accessed.

Next Steps

One or more errors were found in the Secure Sockets Layer (SSL) certificate sent by the server.

For more details, check the Application Proxy Connector Event Log for reported errors.

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Azure AD Application Proxy

Status code: BadGateway

 

Url: https://sometext-domaincouk.msappproxy.net/my_view_page.php

 

TransactionID: A bunch of numbers

 

ConnectorGroupId: More numbers

 

Timestamp: 2/23/2024 8:48:28 AM

 

You are seeing this detailed error message because you are an administrator for this application.

 

Unless it's coincidental and nothing to do with MFA and is indeed as the error suggests, something to do with the certificate.

 

I also don't know how to access the Application Proxy Connector Event Log.

 

All suggestions welcomed as ever.

 

Thanks