Web Conferencing Server connection failed to establish. Event ID 41987

skype-for-businessWeb Conferencing Server connection failed to establish.

Over the past 1 minutes Skype for Business Server has experienced incoming TLS connection failures 1 time(s). The error code of the last failure is 0x80090325(SEC_E_UNTRUSTED_ROOT) and the last connection was from the host “”.
Cause: This can occur if this box is not properly configured for TLS communications with remote Web Conferencing Server.
Resolution:
Check your topology configuration to ensure that both this host and remote Web Conferencing Server can validate each other TLS certificates and are otherwise trusted for communications.

Check Intermediate CA certificates and root CA certificate from Front End Server are imported on Edge Server.

import-ca-certificate-skype-for-business-edge-0x80090325(SEC_E_UNTRUSTED_ROOT)Once done restart Skype for Business Web Conferencing Edge service and make sure the error is gone.

 

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