Sentinel Agent Installer download fails for HCX OS-Assisted Migration(OSAM) with Error: null

Products

• VMware Cloud on AWS

Issue/Introduction

When attempting to download the Sentinel Agent Installer (Windows or Linux) for HCX OS-Assisted Migration(OSAM), the operation fails, displaying an Error: null, as seen in the output below

Environment

VMware HCX

 

Cause

The account used lacks the necessary permissions to access these files, resulting in a failed download. Below are the logs detailing the authorization error for the Sentinel Agent Installer download task,

auditTrail.web.log:
YYYY-MM-DD HH:MM:SS.ms UTC [https-jsse-nio-####-exec-8] INFO  c.v.vchs.hybridity.audit.AuditTrail- {"internal":{"threadEnterprise":"Ent: DEFAULT","threadUser":"No Thread Context","thread":"https-jsse-nio-####-exec-8","lineNumber":266,"classname":"com.vmware.vchs.hybridity.authentication.AuthenticationFilter","method":"doFilter"},"userIdentities":[{"username":"USER_ACCOUNT","enterprise":"DEFAULT","organization":"DEFAULT","userRoles":["Enterprise Administrator"],"endpointId":"####-####-####"}],"userIdentity":{"username":"USER_ACCOUNT "},"eventId":"####-####-####","eventTime":1763521047742,"message":"Authentication success","restEndpoint":{"uri":"\/hybridity\/api\/sentinelBundles?hcspUUID=####-####-####","sourceIPAddress":"###.###.###.###"},"requestParameters":{"query":[{"hcspUUID":["####-####-####"]}],"sessionId":"####"},"operationalStatus":"NOT_APPLICABLE"}

web.log:
YYYY-MM-DD HH:MM:SS.ms UTC [https-jsse-nio-####-exec-8, Ent: DEFAULT, , TxId: TxId: ####-####-####] INFO  c.v.v.h.authorization.CustomVoter- ACCESS_DENIED for URL /hybridity/api/sentinelBundles?hcspUUID=####-####-####, Expected roles: [System Administrator], Roles from session: [Enterprise Administrator]. Check ACLs and Role mapping.
YYYY-MM-DD HH:MM:SS.ms UTC [https-jsse-nio-####-exec-8, Ent: DEFAULT, , TxId: TxId: ####-####-####] ERROR c.v.v.h.a.HybridityAccessDeniedHandlerImpl- Sending Response Error 403 for /hybridity/api/sentinelBundles

Resolution

Please ensure that the user account used to log into the HCX UI has Administrator access. Further information regarding User Account and Role Requirements is available in the documentation provided: HCX Manager User Account and Role Requirements