This is a fresh install of MS Forefront TMG 2010 on a test lab and am experiencing a long delay after enabling or disabling firewall policies. I have created an allow PING rule from the perimeter network to the local machine. I can enable this policy and it takes 40 seconds before the client is able to ping successfully. I disable the policy and it takes a whopping 1 minute and 40 seconds before the client's ability to ping is again blocked.
Is this delay normal for TMG?