Side Effects of Incorrect DNS configuration on ISA Server: 10060 Connection Timeout Scenario

image 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.

https://blogs.technet.com/isablog/archive/2009/08/27/side-effects-of-incorrect-dns-configuration-on-isa-server-10060-connection-timeout-scenario.aspx

HTH,

Tom

Thomas W Shinder, M.D., MCSE
Sr. Consultant / Technical Writer

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Prowess Consulting www.prowessconsulting.com

PROWESS CONSULTING | Microsoft Forefront Security Specialist
Email: [email protected]
MVP — Forefront Edge Security (ISA/TMG/IAG)

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