At a SaaS company, remote users lose an internal application at the same moment a proxy authentication prompt appears, and the application returns after they authenticate. What should diagnosis focus on?
Select an answer to reveal the explanation.
Short Explanation
People get stuck at the same moment the side door asks them for a badge. You focus on the endpoint proxy, because the application returns as soon as they clear that prompt. Swapping a circuit, raising a routing alert, or moving a data-center probe ignores a failure that tracks authentication.
Full Explanation
The application drops at the same moment a proxy authentication prompt appears and returns after the user authenticates, so diagnosis focuses on the endpoint proxy. A path fault would not clear when someone completes a proxy login if the circuit and the routes stayed the same. Replacing the corporate WAN circuit is a response to a path that stays broken regardless of a proxy prompt. A BGP alert looks for an upstream route change, and the recovery condition in this report is authentication rather than a route update. Relocating the data-center Enterprise Agent changes a remote probe and leaves the proxy challenge on the user device untouched. The exam trap is escalating a prompt-shaped outage into a circuit or routing incident. In production, reproduce the loss while watching for the proxy prompt, then confirm the application recovers when proxy authentication succeeds and the WAN path was not changed. If the prompt and the recovery stay lined up, keep the work on that endpoint proxy. A circuit replacement stays unsupported while the application recovers with no change to the WAN path.