Unable to Login to Dynamics CRMOrganizationServiceProxy is null

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Posted on by Deeps

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I have a console application that connects to Dynamics 365. It works from Development environment but when we deploy at Staging it throws error "Unable to Login to Dynamics CRMOrganizationServiceProxy is null".

The credentials and CRM organisation is same. We are using Xrm.Tooling connector for this.

string connectionString = ConfigurationManager.ConnectionStrings["CRM"].ConnectionString;
CrmServiceClient crmConn = new CrmServiceClient(connectionString);
Console.WriteLine("Connected Org Name:{0}", crmConn.ConnectedOrgFriendlyName);

Any thoughts?

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Nishant Rana 11,325 Microsoft Employee on at

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RE: Unable to Login to Dynamics CRMOrganizationServiceProxy is null

This worked for us

nishantrana.me/.../

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CrmMad 65 on at

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RE: Unable to Login to Dynamics CRMOrganizationServiceProxy is null

Thank YOU!!! It's working NOW with this

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Selda 80 on at

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RE: Unable to Login to Dynamics CRMOrganizationServiceProxy is null

It works thanks your comment.

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Dharanidharan 638 Super User 2025 Season 2 on at

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RE: Unable to Login to Dynamics CRMOrganizationServiceProxy is null

I have CRM SDK V9.0 dll and also I have added this below line before establishing connection to CRM

ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12

one thing is instead of Office 365 Auth type I have given OAuth. Below is my connection string

AuthType=OAuth;Username=<<Username>>; Password=<<Password>>;Url=<<CRMOrgUrl>>;AppId=<<AzureADSppId>>;RedirectUri=<<ReplyUrl>>

while establishing the connection I getting the below error: "Unable to Login to Dynamics CRMOrganizationWebProxyClient is null"

Can anyone please help me on this?

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TomDT on at

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RE: Unable to Login to Dynamics CRMOrganizationServiceProxy is null

For PowerShell Users:

#V9 requires new security protocol in order to connect

# reference: crmtipoftheday.com/.../connect-to-version-9-in-your-code

[tag:Adding] this one line of code solved my error:

[System.Net.ServicePointManager]::SecurityProtocol = [System.Net.SecurityProtocolType]::Tls12

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Community Member on at

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RE: Unable to Login to Dynamics CRMOrganizationServiceProxy is null

Thanks venugopal3112 it works for me :)

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gdas 50,091 Moderator on at

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RE: Unable to Login to Dynamics CRMOrganizationServiceProxy is null

Hi ,

Seems this may come due to some credentials or url related issue.

Hope below reference will help you.

missdynamicscrm.blogspot.in/.../error-unable-to-login-to-dynamics.html

Good luck.

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Community Member on at

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RE: Unable to Login to Dynamics CRMOrganizationServiceProxy is null

Add a reference System.Net;

Add a namespace using System.Net;

ServicePointManager.SecurityProtocol = (SecurityProtocolType)3072;

Add this before the connection string is passed

Thank you

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Iswarya 1,347 on at

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RE: Unable to Login to Dynamics CRMOrganizationServiceProxy is null

Hi All,

i too have same issue , i tried everything whatever suggestion is given but still same issue occurs please suggest me to achieve this

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Community Member on at

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RE: Unable to Login to Dynamics CRMOrganizationServiceProxy is null

try the below things:

Dlls Required:
Microsoft.Xrm.Tooling.Connector.dll
System.Net dll

CRM connection code:

string connectionString = ConfigurationManager.ConnectionStrings["CRM"].ConnectionString;

CrmServiceClient client = new CrmServiceClient(connectionString);

Connection String:

<add name="CRM" connectionString="AuthType=Office365;Username=myid@mydomain.com; Password=mypassword;Url=organiationuniquename.crm.dynamics.com"/>

Please add this line to your code before connect to CRM.

ServicePointManager.SecurityProtocol = (SecurityProtocolType)3072; // add ref System.Net dll

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