Just noticed that our SIP trunks drop registration immediately after publishing the weekly schedule. This happens every Friday around 4 PM Central time when the system pushes updates.
The logs show a 403 Forbidden error from the edge gateway. It seems the WFM publish triggers a config refresh that invalidates the current auth tokens.
We are using Genesys Cloud version 2023-11. The issue persists across all trunks. Restarting the service helps temporarily, but the problem returns after the next publish cycle.
Has anyone configured a delay for config propagation to avoid this collision?
You need to decouple the authentication lifecycle from the schedule publication event. The 403 Forbidden error indicates that the edge gateway is rejecting the SIP REGISTER request because the credential context has been invalidated or mismatched during the configuration refresh triggered by the WFM schedule publish.
Cause:
When a schedule is published in Genesys Cloud, the underlying routing configuration undergoes a soft reset. If the SIP trunk authentication relies on dynamic tokens or session-bound credentials tied to the active schedule context, this refresh invalidates the existing authentication state. The edge gateway detects this mismatch before the new credentials are propagated to the trunk registration handler, resulting in a 403 response. This is a known race condition in environments where WFM integrations trigger immediate config deployments.
Solution:
Implement a static authentication mechanism for the SIP trunk registration to avoid dependency on the schedule context. Use Basic Auth with a dedicated service account rather than token-based authentication.
In Genesys Cloud Admin, navigate to Telephony > Trunk.
Select the affected trunk and edit the Authentication tab.
Switch from “Token” to “Basic Auth”.
Create a new Service Account with minimal permissions (only Trunk Registration) and generate a static password.
Update the SIP trunk configuration with these static credentials.
Restart the trunk registration manually to establish the new session.
Additionally, ensure that the auth.timeout setting in the edge configuration is set to a higher value (e.g., 3600 seconds) to prevent premature expiration during the config refresh window. This approach stabilizes the registration state across schedule publishes, as the authentication context remains independent of the WFM deployment cycle. Verify the fix by monitoring the SIP logs for successful 200 OK responses after the next schedule publish event.