Unable to Login to Dynamics CRM

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Posted on by HenriquePalomo

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Hey guys.

I'm facing this issue: LastCrmError = "Unable to Login to Dynamics CRMOrganizationServiceProxy is null" while trying to login into CRM from any code, like console application or Web Service. Everything was working in one day and suddenly we started to face this problem.

Any help?

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Nishant Rana 11,325 Microsoft Employee on at

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RE: Unable to Login to Dynamics CRM

We were also getting the same error - this helped

nishantrana.me/.../

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HenriquePalomo 510 on at

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RE: Unable to Login to Dynamics CRM

I did not see the url inside your post, i was reading from my phone so probably the URL was broken.

I was reading the article and now make sense, thank you Pawel.

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tw0sh3ds 5,600 on at

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RE: Unable to Login to Dynamics CRM

It's not strange at all if you follow the latest requirements:

blogs.msdn.microsoft.com/.../updates-coming-to-dynamics-365-customer-engagement-connection-security

I posted it at the beginning of this topic, but you ignored it...

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HenriquePalomo 510 on at

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RE: Unable to Login to Dynamics CRM

docs.microsoft.com/.../download-tools-nuget

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HenriquePalomo 510 on at

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RE: Unable to Login to Dynamics CRM

Yeah. I've downloaded 30 minutes ago and now it's working.

It's weird that the 8.2 version Plugin registration stopped working from nothing.

Thank you anyway.

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tw0sh3ds 5,600 on at

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RE: Unable to Login to Dynamics CRM

Are you using version 9.0.0.7? You have to be using latest version of PRT

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HenriquePalomo 510 on at

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RE: Unable to Login to Dynamics CRM

The plugin registration still not working and going back to the login screen after selecting the organisation.

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Aric Levin - MVP 30,188 Moderator on at

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RE: Unable to Login to Dynamics CRM

Are you still getting this. This is an email that I got from Microsoft last night:

Starting on January 04, 2018, 2:12 AM UTC, we detected a problem with Dynamics 365. Your users might not be able to sign in right now or they might have trouble using some features.

For more information and status updates, please see the Service Health page in Office 365.

Thanks for your patience while we sort this out.

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HenriquePalomo 510 on at

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RE: Unable to Login to Dynamics CRM

Yes, I see.

But the weird thing is that I'm able to connect using plugin registration into one client Environment and the other one I don't.

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Community Member on at

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RE: Unable to Login to Dynamics CRM

Found out through our Dynamics 365 admin portal see below

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