Your ISA or TMG firewall seems slow – check DNS.
Your users complain that graphics aren’t appearing correctly – check DNS.
The ISA or TMG firewall is acting inconsistently – check DNS.
The ISA or TMG firewall can’t authenticate users – check DNS.
That’s right – DNS is the major culprit in ISA and TMG firewall issues.
Check this article by Yuri Diogenes on another case where DNS was the problem.
HTH,
Tom
Thomas W Shinder, M.D., MCSE
Sr. Consultant / Technical Writer
Prowess Consulting www.prowessconsulting.com
PROWESS CONSULTING | Microsoft Forefront Security Specialist
Email: [email protected]
MVP — Forefront Edge Security (ISA/TMG/IAG)