When trying to access the VDI VS which is configured on NSX native load balancer, following error is triggered "failed to resolve proxy route for request"

Products

• VMware NSX

Issue/Introduction

• Verified by accessing the VDI UAG Virtual server externally from a client machine, stating "failed to resolve proxy route for request".

• The external VDI connection works in 2 phases, authentication( TCP 443) and Blast protocol session (TCP 8443), separate NSX virtual servers are configured for both the services against the same pool. 

Environment

VMware NSX

Cause

 If the authentication (TCP 443) and Blast protocol session's (TCP 8443) TCP flows are not landed on the same backend pool member, then the reported issue is observed.

Resolution

Note: NSX Native Load Balancers do not support cross-VIP TCP session persistence.

If your deployment requires session continuity between Authentication and the Blast protocol, you must use a single L4 TCP 443 Virtual Server for both services. This prevents the session from breaking when transitioning from authentication to the data stream.

Additional Information

Refer https://kb.omnissa.com/s/article/90155