Anthropic: Unable to Sign In to Anthropic Claude with a UTK Email Address

Topics Answered in this Article
Anthropic sign-in error
Claude access issue
Anthropic for Education

Overview

This article provides information about an Anthropic sign-in issue affecting some University of Tennessee Knoxville users who previously created a Claude account using their UTK email address.

Problem

When You Receive the AADSTS50105 Error While Signing In to Anthropic

If you receive the following message during sign-in:

AADSTS50105: Your administrator has configured the application Anthropic to block users unless they are specifically granted access to the application.

This issue is related to the rollout of Anthropic for Education at UT Knoxville.

Current Status

The University of Tennessee is expanding access to artificial intelligence tools that support teaching, research, learning, and work. Soon, faculty and staff will be able to request access to Claude for Higher Education, a university-managed AI platform powered by Anthropic. As an alternative to the AI Hub, Claude for Higher Education will give faculty and staff a secure way to use Claude for university work.

To prepare for this change, faculty, staff, and students may no longer use their UT email addresses for personal Anthropic accounts. 

  • If you already have an Anthropic account connected to your UT email address, follow Anthropic’s instructions to create a new account using your personal email address. 
    OIT recommends exporting your data for your records; unfortunately, it cannot be imported into another account. Then, cancel your subscription and create a new account using your personal email address. 
  • If your personal Claude subscription is paid by the university, you can submit a request to OIT for a Claude for Higher Education account beginning October 1, 2026, and request that your account be moved into the UT organization. 
    • Moving your account to the UT organization will also move your chats, projects, and files to your UT account. It will also cancel any Pro or Max subscription and issue a prorated refund. Apple App Store subscriptions must be canceled through Apple. For full instructions, see Anthropic’s guide - Move your personal Claude account to a Team or Enterprise organization.
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