ISA/TMG memory Pool Depletion and performance issues.

I worked on a case recently where ISA server’s service was stopping and hanging intermittently and Administrator had to reboot it to get it to work again. As usual with such performance issues, We put the performance counters on the ISA server , Please refer to my blog post, for TMG, http://blogs.technet.com/b/sooraj-sec/archive/2013/01/07/tmg-performance-counters-template.aspx and for ISA server http://blogs.technet.com/b/sooraj-sec/archive/2010/09/12/isa-server-stops-responding-the-user-requests-and-its-required-to-reboot-the-isa-server-or-restart-the-firewall-service-scenario1.aspx. Ideally we…