Thanks for the response, Adam. Negative - both sites are connected via MPLS, which does not traverse a firewall on either end. Also, a port scan from each server to the other shows 443 as being open on both servers.
Jonathan On Tue, Jun 3, 2014 at 1:17 AM, Adam Farage <[email protected]> wrote: > Firewall blocking the TCP 443 response? > > Adam F > ------------------------------ > From: Jonathan <[email protected]> > Sent: 6/3/2014 12:44 AM > To: [email protected] <[email protected]> > Subject: [Exchange] Event ID 11 with Source MSExchange Web Services > > Hi - new to this list, though I was on the Sunbelt lyris list years > ago. Have not been active in a couple of years. I'm hopeful someone here > can help me out. My Google-fu is failing me.... > > I have [inherited] two Exchange 2007 Servers running SP3 with the latest > rollup (I got them updated from SP2 back in October) these servers are in > two separate sites. Each server holds all the roles, and we're just passing > HT traffic between. Each sends their own email out their local connection, > but all inbound traffic comes in through Site1. The mailboxes are split > about 50/50 between the two servers. > > Anyway, we have been receiving the following event on both servers for > some time. We are NOT getting event ID 17 on either server (as just about > everything I've googled turns up). on each server, the event says "none of > the CAS servers in [the remote] site are responding". > > If you have any suggestions on how I can resolve this, I'd be very > grateful. > > Event Type: Error > Event Source: MSExchange Web Services > Event Category: Core > Event ID: 11 > Date: 6/2/2014 > Time: 9:58:19 PM > User: N/A > Computer: EX01Site1 > Description: > CAS server EX01Site1 failed to proxy EWS to AD > site CN=Site2,CN=Sites,CN=Configuration,DC=DOMAIN,DC=CORP because none of > the CAS servers in this site are responding. Please check the > configuration and status of the servers in site > CN=Site2,CN=Sites,CN=Configuration,DC=DOMAIN,DC=CORP > > For more information, see Help and Support Center at > http://go.microsoft.com/fwlink/events.asp. > > > -- > Jonathan, A+, MCSA, MCSE > -- Jonathan, A+, MCSA, MCSE
