Keep the error code to narrow the scope
Chrome name-resolution, timeout and network-change errors suggest different checks. Inspect name resolution, waiting for response or a connection change during loading respectively. An error is a clue, not final proof that a VPN node failed.
Arrange one comparison for the error
For a name error, verify spelling and try another known domain. For a timeout, compare the same URL on another network. For a network change, wait for stability and reload. Change one condition at a time and record whether all sites fail; avoid simultaneous DNS, protocol and route changes.
Provide reproducible information
Include browser and client versions, code, destination domain, network and time. Hide accounts and full token-bearing URLs in screenshots. Do not mask the issue by disabling certificate checks. Yunbao downloads and community access are on the homepage.