Stop guessing: "Registered, but LAS endpoint is unreachable".
We have all seen this error in the Citrix Cloud Console (see 2nd image). It claims the endpoint is unreachable, yet the firewall logs say everything is fine.
The problem is rarely just the network. It is often a combination of outdated software versions, stopped services, time drift, or missing TLS 1.2 registry keys. Standard tests like Test-NetConnection are insufficient because they miss the application layer context.





