Fix sample failures with name resolution error

[nithyatsu]

We have multiple failures with below logs.
Web application is ready: http://localhost/
Error text: "Failed to load resource: the server responded with a status of 404 (Not Found)"
Error text: "Failed to load resource: the server responded with a status of 404 (Not Found)"
Error text: "Failed to load resource: the server responded with a status of 500 (Internal Server Error)"
Error text: "[2024-03-23T15:50:44.663Z] Error: Failed to complete negotiation with the server: Error"
Error text: "[2024-03-23T15:50:44.666Z] Error: Failed to start the connection: Error"
Error text: "Failed to load resource: net::ERR_NAME_NOT_RESOLVED"

Explore and fix tests to avoid this failure.

AB#11642

[nicolejms]

regression from discovery feature changes.

[ytimocin]

This should have been fixed via #1360. Closing this for now and will watch out for this error. Will reopen this issue if necessary.