TMG 2010 - Intra-array comms lots of RPC SYNs

Posted on 2011-04-22
Last Modified: 2013-11-16
Hi Experts,

TMG set up in an array.
2 TMG servers, 1 configuration storage server.

When having a look at the logs, i've noticed there are thousands of RPC connections being made and

Failed Connection Attempt
Log type: Firewall service
Status: A socket operation was attempted to an unreachable network.  
Rule: [System] Allow intra-array communication
Source: Local Host (
Destination: InterArrayComs (
Protocol: RPC (all interfaces)

This is happening continually.

Any ideas what I can to fix this?

Both servers are up and both are pingable from eachother using the interface for intra-connectivity.
Question by:MarkMichael
    LVL 51

    Accepted Solution

    untick the strict RPC compliance please for the rule
    LVL 15

    Author Comment

    where is that rule please?
    LVL 51

    Expert Comment

    by:Keith Alabaster
    Right-click the rule you have in place and select the configure RPC then deslect the strict RPC option.

    Featured Post

    Do You Know the 4 Main Threat Actor Types?

    Do you know the main threat actor types? Most attackers fall into one of four categories, each with their own favored tactics, techniques, and procedures.

    Join & Write a Comment

    Create high volume marketing opportunities using email signatures with these top 10 DOs and DON'Ts of email signature marketing.
    Find out how to use Active Directory data for email signature management in Microsoft Exchange and Office 365.
    The basic steps you have just learned will be implemented in this video. The basic steps are shown to configure an Exchange DAG in a live working Exchange Server Environment and manage the same (Exchange Server 2010 Software is used in a Windows Ser…
    To add imagery to an HTML email signature, you have two options available to you. You can either add a logo/image by embedding it directly into the signature or hosting it externally and linking to it. The vast majority of email clients display l…

    754 members asked questions and received personalized solutions in the past 7 days.

    Join the community of 500,000 technology professionals and ask your questions.

    Join & Ask a Question

    Need Help in Real-Time?

    Connect with top rated Experts

    22 Experts available now in Live!

    Get 1:1 Help Now