# Failed to obtain access token ## Problem When you are trying to log in to KONNEKT you get the error message "Failed to obtain access token". ## Cause KONNEKT does not support having "Excluded Apps" in a MFA-requiring Microsoft Entra (Azure AD) Conditional Access policy in combination with a non-SSO Windows session. ## Workaround Our recommended workaround is to enable the Windows machine for holding a Primary Refresh Token (PRT) e.g. by Entra Join (AAD Join) or Register. Please see [here ](https://learn.microsoft.com/en-us/entra/identity/devices/concept-primary-refresh-token#how-is-a-prt-issued)for details. Other alternatives are (not really recommended): * Remove MFA requirement from the corresponding Conditional Access Policy. To keep some security for CA policies without MFA, you could enforce [Trusted Locations (e.g. public IP addresses of your VDI hosts)](https://learn.microsoft.com/en-us/entra/identity/conditional-access/location-condition) or * use a Conditional Access Policy without "Excluded Apps". Please also see [Conditional Access configuration](/installation/security/conditional-access.md). ## Solution A solution was implemented in KONNEKT version 2.10 - "[Enhanced OAuth](/configuration/system-settings/enhanced-authentication.md)". --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.konnekt.io/troubleshooting/access-token-issues/failed-to-obtain-access-token.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.