Providing information associated with network latency

Network conference application software measures communication latency between itself and an endpoint in a conference. Endpoints with excessive latency are identified as having a delay. Information about endpoints with delays is displayed by the network conference application during a network conference. The displayed information may include the ratio of endpoints with delays to total endpoints, and a representation of data previously transmitted by the conference application that an endpoint with a delay is currently viewing. A graphical user interface may be used for displaying information about endpoints with delays.