The hosting provider of the Mississauga, Canada Cloud Agent experienced a network issue with an upstream provider. The  Agents in the Mississauga cluster were not be able to reach targets accessed through the affected provider's network. Tests whose traffic used the affected provider would time out or experience similar failures.

2018-07-11 01:15 UTC: The issue has been fixed, and any tests that use the Mississauga Cloud Agent should now be reporting data normally.