Why do I lose internet access when microsoft firewall enabled in ISA 2006

Hi. I just installed isa 2006 on my sbs 2003.  everything seemed to go according to plan but I think I may have enabled or not enabled something in ISA. reason for installation of ISA is rww etc.  when I run the Microsoft firewall I get the page cannot be displayed, refresh page, check spelling etc. error code 403 forbidden the ISA server denied the specified uniform resource locator (URL) (12202).  when I stop the micorosoft server I have web access again. is there a tick box or some configuration I have missed?
Thanks again
Chris
wireless24Asked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

wireless24Author Commented:
Hi,

I have also lost the ability to add computers to the domain as well I have noticed when they log on they're slow and wont connect to the internet either. this is the same whether or not the microsoft firewall is enabled or not.

Cheers

Chris
0
warturtleCommented:
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
SBS

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.