The Audio/Video Conferencing Server cannot reach the Audio-Video Edge Server.
The Audio/Video Conferencing Server being unable to reach the Audio-Video Edge Service may be due to network connectivity issues, or the Audio-Video Edge Service pool being unavailable. This will impact Audio/Video Conferencing Server for users joining from outside of the enterprise network. This will also prevent the enforcement of Call Admission Control, if it is deployed. For additional information to troubleshoot the issue, please look at the event AVMCU_E_MRAS_REQUEST_FAILED (Event ID: 32018)
Please ensure connectivity and availability of the Audio-Video Edge Service for the Audio/Video Conferencing Server to verify this issue is corrected. Note: In Case the Audio-Video Edge Service is not deployed, and only a Call Admission Control server is deployed, this issue means the Audio/Video Conferencing Server is unable to reach the Call Admission Control Server.