• Synthetic Classic Portal
  • Diagnostics > Instant Test



Why am I receiving this error when attempting to run an Instant Test?

"Unable to create: The underlying connection was closed: Unable to connect to the remote server."


This error message occurs when you attempt to run an Instant Test, but Synthetic Classic can't establish a connection with the selected nodes or Peer Populations.

If you experience this error, wait a few minutes and run the test again. If the problem persists, select a new node or Peer Population; or contact Support for assistance.






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