I have this problem and it's bothering me since long time, I wish if any one could help me.
this error is keep comming every 3 mints..
Log Name: Application
Source: Microsoft Forefront TMG Firewall
Date: 1/17/2013 1:00:30 PM
Event ID: 21137
Task Category: None
Level: Error
Keywords: Classic
User: N/A
Computer: its-px-sv.Sajco.com.sa
Description:
The connectivity verifier "Farm: e" reported an error when trying to connect to https://192.168.0.84/exchange/.
Reason: No connection.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft Forefront TMG Firewall" />
<EventID Qualifiers="49152">21137</EventID>
<Level>2</Level>
<Task>0</Task>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2013-01-17T10:00:30.000000000Z" />
<EventRecordID>123203</EventRecordID>
<Channel>Application</Channel>
<Computer>its-px-sv.Sajco.com.sa</Computer>
<Security />
</System>
<EventData>
<Data>Farm: e</Data>
<Data>https://192.168.0.84/exchange/</Data>
<Data>No connection</Data>
</EventData>
</Event>