exchange certificates

Posted on 2014-08-13
Last Modified: 2014-08-13
Hi, we have exchange 2010 and a netgear utm 150 who have been playing nicely for the past year but in the las few weeks we have been getting the attached security message and users reporting emails running slowly.

When examing the cert in question it is issued to and by netgear.

The only major change recently was upgrading exchange to SP3.

The MX record is pointing to or static ip, the exchange fqdn is

Any pointers would be great.
Question by:PlanAndSimple
    LVL 63

    Accepted Solution

    You need to look at the router configuration.
    It almost certainly has an SSL VPN setting on it, which is listening to port 443. It could also be a remote admin console.

    If you have multiple IP addresses, then this should be easy to resolve, simply by changing the address that is used by Exchange to another one.

    If you do not, then you will have to use another port for the SSL VPN, or disable it completely. Ditto for the remote admin console.

    Exchange 2010 SP3 wouldn't have caused any specific problems, other than possibly reset things back to how they should have been configured. If someone had tried to work around the problem on the Exchange side, rather than the router side and put in an invalid configuration, then that might explain the change.

    Ultimately the router configuration is what needs to be changed, as Exchange cannot use ports other than 443 for web traffic.

    No idea what the attachment shows, as I don't open docx files off the internet.


    Author Closing Comment

    Thanks for the solution. Checked router settings and you were spot on.

    Thanks again for the help.

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