Hello All, We have two StoreFront 2203 LTSR CU4 installations on Server 2016. After a Citrix Health Check, we were advised to upgrade the OS Server 2016 to server 2019. We created two new Server 2019 instances, exported the StoreFront configuration via PowerShell, and imported it to the new Server 2019. according to Citrix documentation: https://docs.citrix.com/en-us/storefront/2203-ltsr/export-import-storefront-config Now, we have an issue: our SSO stores are not working, and we receive the error "No logon methods are available on this platform." Meanwhile, the old Server 2016 has no issues with our SSO stores. Old server group Storefront version: 2203 LTSR CU4 Server 2016 (1607) Exported Storefront configuration with powershell New Server group Storefront verson 2203 LTSR CU4 Server 2019 (1809) Imported Storefront Configuration with powershell

@Nila Did you check which authentication method are configured on the store?

The new server group is the same as the production group. In the production StoreFront, the same stores are working without any issues. The authentication method is 'Domain Pass-Through'. The only difference between the two server groups is the Server OS: 2016 vs. 2019.

Do you only have domain pass-through configured?

Yes, it has been checked. The problem is that the same store URL works on Server 2016 but not on Server 2019.

Are you load balancing StoreFront servers? Did you power down the 2016?

Connecting directly to Server 2016 or to the LB address works, but connecting directly to Server 2019 or to the LB address does not work.

When you use the Same BaseURL it switches back to the BaseURL even if you go to the Server2019 URL…

Are your old StoreFront servers in the built-in domain group "Windows Authorization Access Group"? If so, you may need to add the new StoreFront servers to that group.