LS Data MCU Event ID 41029

Solving a conferencing component error.

LS Data MCU Event ID 41029
Conferencing modality.

Server Machine FQDN:, Port:8061

Server Type: External-WebApp-Edge [HTTP side error:The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel.]

If the problem persists this event will be logged again after 20 minutes

Cause: Service may be unavailable or Network connectivity may have been compromised.


This issue is related with your WAC, Office Web App Server.
Mostly, you need to validate this settings

Server FQDN spelling
check if WAC Server support only SSL
Check your Certificate Deployment on the WAC Server

This solves the issue.


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