Metadata contains a reference that cannot be resolved: 'https://adfs.hostname.com/adfs/services/trust/mex'.

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Posted on by Euclides Pelisco Jr

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Having issue on connecting to my environment in my console app.

Metadata contains a reference that cannot be resolved: 'adfs.hostname.com/.../mex'.

Anyone knows how to resolve this? Thanks.

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Community Member Microsoft Employee on at

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RE: Metadata contains a reference that cannot be resolved: 'https://adfs.hostname.com/adfs/services/trust/mex'.

Thanks for the response. I updated to 9.0.2.12, which is the latest version, but still getting the same error. Think I figured it out. The top level SSL certificate needs to be installed on our servers.
Community Member Microsoft Employee on at

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RE: Metadata contains a reference that cannot be resolved: 'https://adfs.hostname.com/adfs/services/trust/mex'.

update to the new version of .net 9.0.0.7, in new update this problem has been solved,i suggest you to use xrm tool .
Community Member Microsoft Employee on at

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RE: Metadata contains a reference that cannot be resolved: 'https://adfs.hostname.com/adfs/services/trust/mex'.

Hi, Can you tell me how you resolved this issue as I'm running into the same problem. Thanks.
Euclides Pelisco Jr 131 on at

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RE: Metadata contains a reference that cannot be resolved: 'https://adfs.hostname.com/adfs/services/trust/mex'.

Hi guys.

Thank you for taking time to check my inquiry.

The issue is now fixed. According to some suggestions on my research.

I just tried to update .NET framework to 4.6 and Microsoft.CrmSdk.CoreAssemblies to 9.0.0.7
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Euclides Pelisco Jr 131 on at

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RE: Metadata contains a reference that cannot be resolved: 'https://adfs.hostname.com/adfs/services/trust/mex'.

The issue is now fixed. According to some suggestions on my research.

I just tried to update .NET framework to 4.6 and Microsoft.CrmSdk.CoreAssemblies to 9.0.0.7
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Kokulan 18,048 on at

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RE: Metadata contains a reference that cannot be resolved: 'https://adfs.hostname.com/adfs/services/trust/mex'.

Hi

For your credentials part, could you try with the following

var _credentials = new ClientCredentials();

_credentials.Windows.ClientCredential.Domain = "domainname";

_credentials.Windows.ClientCredential.UserName = "username";

_credentials.Windows.ClientCredential.Password = "pw";

And TLS12 setting is not necessary for CRM 2016.
Euclides Pelisco Jr 131 on at

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RE: Metadata contains a reference that cannot be resolved: 'https://adfs.hostname.com/adfs/services/trust/mex'.

Hi David. Thank you for the tips.

I tried to connect using xrmtoolbox and it worked.

I used this code to establish connection. This code works to my trial environment. But when I tried to connect to our environment with adfs setup, connection error pops up. Do you have any idea what I missed in the code connecting to environment with adfs setup?
David Jennaway 14,063 on at

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RE: Metadata contains a reference that cannot be resolved: 'https://adfs.hostname.com/adfs/services/trust/mex'.

The first things I'd check are:

Can you browse to the metadata url that you get in the error message ? If not, the CRM ADFS configuration may be incorrect, or you may have firewall or other connectivity issues

Check the event log on the ADFS server (ADFS creates a separate log rather than using the Application log) to see if it has any useful errors

It's also worth checking if you can connect programmatically using other tools. I'd suggest using XrmToolbox. If you can connect, it indicates an issue in your code, whereas if you can't, then it's more likely to be an ADFS or CRM ADFS configuration issue