Bad Certificates Lead to Firewall Service Woes

I’m seen a number of posts on the Web boards complaining about the ISA Firewall Service not starting. At first, it was hard to figure out what might be creating the problem, since I didn’t have any “usual suspects” to implicate. However, over time it became clear that there is at least one “usual suspect” in a Firewall Service fails to start situation — bad certificates.


Yuri Diogenes does a great job at describing the problems that bad certificates create in his blog post over at

Check it out!



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

Prowess Consulting

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

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