How to fix Teams error code 4c7


Microsoft Teams offers a great solution to host corporate or education meetings, however, all good things come with their own adversities. In Teams its issue’s regarding the login process. When you connect from a business network with AD FS installed, you won’t be able to sign in to Microsoft Teams. You’ll also get the following login error message: “Modern authentication failed here, but you may still sign in.” 4c7 is your status code.” Microsoft Teams needs Forms Authentication, which causes this issue. Forms Authentication on the intranet is disabled by default when you implement AD FS. This prevents Microsoft Teams from implementing the sign-in patch and here you run into this particular issue. However, there are some solutions to resolve this issue. This blog will address a handful of the most convenient fixes. Follow the steps below to see how you can fix this error.

Step by step process – How to fix Teams error code 4c7

  • Open the administration panel for “Active Directory Federated Services.”
  • In the left-hand column, choose “Authentication policies.”
  • Click ‘Edit global primary authentication’ in the right-hand “Actions column.”
  • Go to the “Primary” tab in the new window that appears.
  • Enable “Form Authentication” in the “Intranet” section.
  • Finally, all users should now restart Microsoft Teams after clicking “Apply.

The above step-by-step method is the most successful since it disables the ADFS directly, allowing Teams to work and fix issue code 4c7. When it comes to Active Directory deployment, there are several variables to consider before enabling users to access their accounts. The sheer amount of rules that must be specified for each user might create sign-in issues. If none of the aforementioned methods work, conduct a complete audit of how users are permitted to sign in, how their credentials are verified, and which policies are applied to which users. A policy has most likely been modified if a substantial number of users are experiencing the issue. It’s conceivable that the account/user status of a few random people has been altered.

What is ADFS – that causes the Teams error 4c7?

By securely sharing digital identity and entitlements rights across security and organizational boundaries, Active Directory Federation Service (AD FS) provides Federated Identity and Access Management. To provide customers, partners, and suppliers with a simplified user experience when using an organization’s web-based services, AD FS extends the ability to employ a single sign-on capability that is accessible within a single security or enterprise boundary to Internet-facing apps. This is the primary cause of why theory is an issue with Teams. Error 4c7 comes mainly from sign restrictions imposed by the SSL authentication certificate. Acting like a barrier preventing user access to sites such as Teams. Disabling it allows you to use the standard authentication method which will therefore remove any imposing restriction to Teams.

Login protection

To provide customers, partners, and suppliers with a simplified user experience when using an organization’s web-based services, AD FS extends the ability to employ a single sign-on capability that is accessible within a single security or enterprise boundary to Internet-facing apps.

After a password-less option is utilized as the first factor, customers have a fully supported inbox option to use password alone for the extra factor. This is an improvement over ADFS 2016 when users had to download a Github adapter, which is still supported.

Customers may now create their own plug-in modules to prevent specific sorts of requests from being processed during the pre-authentication stage. This makes it easy for clients to leverage cloud intelligence like Identity protection to prevent dangerous individuals or transactions from logging in.

In depth – Step by step process – How to fix Teams error code 4c7

Step by step breakdown:

  • Open the administration panel for “Active Directory Federated Services.”

Open a Microsoft Management Console (mmc.exe) on your Windows Server and add the AD FS management tool snap-in. Select Add Relying Party Trust… from the drop-down menu.

  • In the left-hand column, choose “Authentication policies.”

This step is simple, it will basically allow you to access the editing panel, from which you can either configure or even disable your ADFS authentication input.

  • Click ‘Edit global primary authentication’ in the right-hand “Actions column.”

Another simple step, here you simply uncheck the box which will prevent the ADFS from scheduling an authentication protocol on Teams.

  • Go to the “Primary” tab in the new window that appears.

  • Enable “Form Authentication” in the “Intranet” section.
  • Finally, all users should now restart Microsoft Teams after clicking “Apply.

The technique described above is the most successful since it disables the ADFS immediately, allowing Teams to work on and resolve issue code 4c7. There are numerous things to consider while deploying Active Directory before allowing users to access their accounts. Sign-in difficulties may arise due to the large number of rules that must be set for each user.

If none of the above techniques work, perform a thorough investigation into how users are allowed to sign in, how their credentials are validated, and which policies are applied to which individuals. If a large number of people are having problems, a policy has most certainly been changed. It’s conceivable that the account/user status of a few random people has been altered.

That’s it for this Blog thank you for taking time out to read our content, please feel free to email our team about how it went if you followed the steps or if you need more help with the questions we answered in this Blog.

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