I understand that your AppStream fleet is domain joined to sarvajeevan.com
This issue seems to be related to Windows user login issue that happens in AppStream in different scenarios and mentioned error code "1355" basically means "ERROR_NO_SUCH_DOMAIN". Please refer following Microsoft documentations.
— System Error Codes (1300-1699): https://docs.microsoft.com/en-us/windows/win32/debug/system-error-codes--1300-1699-
To isolate the DNS issue, could you please verify the DHCP Option set for your VPC and ensure that it is configured correctly. Additionally, could you launch an EC2 instance in the same subnet and try to domain join and check if the issue is observed there as well.
AppStream 2.0 requires that the SAML_Subject NameID value for the user who is logging in be provided in either of the following formats:
- domain\username using the sAMAccountName
- firstname.lastname@example.org using the userPrincipalName
Kindly ensure that the above settings are configured correctly and test the authentication once again. In such case, it would be beneficial to have a look at the HAR logs and check the SAML response.
I would encourage you to kindly open a support case, so that we can troubleshoot it further.
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