Trending issue with Distributed Cache and July 2026

The July 2026 update was released July 14, 2026. This introduced many security fixes but this can cause issues with your SAML, OIDC, or FBA implementations. This can prevent tokens from being added or read from dcache. Here are some logs from my 2019 farm:07/18/2026 12:18:03.74 w3wp.exe (0x0FF8) 0x1914 SharePoint Foundation DistributedCache air38 Medium Token […]

AuthProviderTypeChangeEnabled – Preventing migrations in User Profile Synchronization

There is new logic in the User Profile Service Application that will prevent user migration between authentication providers. This means no more migrating from Windows to Trusted Identity Provider or Trusted Identity Provider during User Profile Sync. This is only available for SharePoint Subscription Edition(SE) and SharePoint 2019 with February 2023 CU. AuthProviderTypeChangeEnabled is set […]

SharePoint 2019 – Anonymous Prompting for Credentials

SharePoint 2019 introduced Modern pages. With this, we see an additional permission that needs to be set. There are two ways to address this prompting issue. Add the UserRemoteAPIs permission to Anonymouspermmask64 -OR- Uncheck the box for “Require Use Remote Interfaces permissions” Site Settings -> Site Permissions -> Anonymous Access (in the ribbon) This can also […]