TMG 2010 web publishing with two Internet Connections
Im after abit more advice. Our TMG server has two internet connections that are in Failover Only mode on the ISP Redundanct Tab.
My issue is we cannot access a published web server when both connections are active. When the 2nd reduntant connection is disabled it works instantly. I also have Exchange 2007 OWA published through the same TMG server, but access to this works regardless of the 2nd connection being active. Now the external IP address for the site in question is linked to the Primary network connection, as is the OWA, so I cant understand why having the 2nd redundant connection active would cause the published site not to work.
I have compared both access rules for OWA and the published site and they are the same, other than the details of ther server they are hosted on, and their relative host names etc.
One last thing, when I remove the gateway address from the 2nd redundant connection, it works instantly, so it appears the request comes in using the external IP through the primary internet connection, but then tries to reply and go out on the 2nd redundant connection causing it to time out.
Any ideas would be greatly appreciated.