Alert: At Least one ISP link is unavailable
Management Pack Name: Forefront TMG Management Pack
Management Pack Version: 7.0.7695.100
Rule or Monitor: Monitor
Rule or Monitor Name: Forefront TMG Server – ISP Redundancy: Links Availability Monitor
Rule or Monitor Notes: none
Issue: The monitor never back to Healthy state.
This monitor uses the event with ID 31520 from Microsoft Forefront TMG Firewall source (Application event log) to detect the healthy condition. It looks like this event doesn’t exist because I never seen this event on any of our TMG servers (we have more than 30 TMG servers, all of them are configured with ISP-R).
The Hotfix Management Pack contains the new monitor that uses the event with ID 31534 for the Healthy state detection:
Log Name: Application
Source: Microsoft Forefront TMG Firewall
Event ID: 31534
Task Category: None
Connectivity to the Internet through the ISP connections ISP1 and ISP2 was restored.