Network maintenance has been completed for Application Insights Availability Web Test feature. Some customers may have experienced intermittent data gaps for availability tests in Miami location. This maintenance window has been closed and normal operation is restored.
During this timeframe some customers may experience very short availability data gaps in Miami location. We will make every effort to limit the amount of impact to customer availability tests, but customers should ensure their availability tests are running from at least three locations to ensure redundant coverage through maintenance. Please refer to the following article on how to configure availability web tests: https://azure.microsoft.com/en-us/documentation/articles/app-insights-monitor-web-app-availability/