For the last month or so, we have been having Outlook XP connectivity problems over SecureClient. They are manifested by the appearance of Microsoft's Cancelable RPC Dialog box that says "Requesting data from (Exchange server)". This problem definitely started in the last month or so. Maybe it's related to a hotfix or HTTP security fix? Running NG AI R55 HFA1
To duplicate it, we start Outlook XP in the "Connect" (work online) mode, open a new email message and click the "To:" button to pull up the list of Exchange recipients. We get the RPC Dialog five seconds later right on schedule and SmartviewTracker shows this:
Number: 543359 Date: 15Mar2004 Time: 17:04:03 Product: VPN-1 & FireWall-1 Interface: eth-s1p1c0 Origin: (FW-1 box) Type: Alert Action: Reject Protocol: tcp Service: 1092 Source: (Office Mode IP address) Destination: (Exchange server) Rule: 998 Source Port: 1991 Information: DCE-RPC Interface UID: f5cc5a18-4264-101a-8c59-08002b2f8426
That DCE-RPC UID corresponds to the MsExchangeDSNSPI service. I now have to cancel the dialog box, close the blank Outlook Select Names box and click the "To:" button again to get a fully populated Select Names dialog box.
This is messing up OST synchronization as well. We do have a rule that specifies all of the DCE-RPC services individually.
I can make this happen 100% of the time by firing up SecureClient on the LAN on my desktop and performing the steps above. It's definitely a FW-1/SecureClient issue and not an Exchange issue.
I'm at my wits end. If anyone can lend a suggestion, I'd sure appreaciate it.
Ray
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