user is disconnected from isa server 2004

I have 2 users  that are constantly being disconnected from ISA.(total of 16 in the domain) Error reported is red X on the ISA graphic and "internet connection has stopped working". CAL licensing is not an issue as there are 20 seats. Any ideas? Both these clients are using AKAMI and the other domain users do not use this app. I believe that the issue is with ISA as I sometimes see disconnection events in the ISA log.

Thanks
S_DuncanAsked:
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pwindellConnect With a Mentor Commented:
If AKAMI is some kind of proxy,...then it is most likely the cause.  It,...as a proxy,...could easliy screwup the Domain's required DNS resolution and also the authentication,...and get in the way of using the ISA.
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pwindellCommented:
Red X on what ISA graphic?
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S_DuncanAuthor Commented:
Yes, that is correct.
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pwindellCommented:
I mean what graphic?
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S_DuncanAuthor Commented:
There is only 1 ISA graphic per/desktop. Are you familiar with the ISA graphic when it is connected or disconnected to the ISA server?
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pwindellCommented:
Ok, you mean the Firewall Client software showing down by the clock.

That is only related to the Firewall Service.  the Web Proxy Service and SecureNAT Services are separate from that.

So that will do that if one of two things happen:

1. You have a network problem causing the Client machine to have actual connectivity problems to the ISA at the network level

2. The is a DNS issue going on with the LAN where either the Firewall Client cannot resolve the ISA's name to the IP# or the user account fails to authenticate.  Both of those can be causes by faulty DNS operation whereby authetication fails,....AD depends on DNS working properly.
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pwindellCommented:
I have no idea what AKAMI is,...so I have no idea if it is relavant.
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S_DuncanAuthor Commented:
I have just found out that the 2 workstations have AKAMAI installed. The application is in the start menu, and does require the user to log in. I advised 1 user not to log into the application, and simply click through it, and Log in to the domain only. The other user has made no changes so I have 2 dis-similar
workstations. I believe that AKAMAI is a proxy server used mostly as a download manager. My experience with web servers/proxy servers and ISA is that they do not play nice together. Would you agree? Thanks for the info so far but I do not think the issue is pertinent to dns but I could be very wrong in my thinking. If it is a dns issue, how would you go about proving it , and then solving it?
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S_DuncanAuthor Commented:
Thanks, your response goes along with my thinking. I am going to uninstall that app from the 1 workstation, and monitor the perf logs. I will post back to you with I hope a final resolution to this issue.

Thanks...
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S_DuncanAuthor Commented:
I did not uninstall AKAMi from the workstations but I did disable AKAMI services. Then a clean boot. No performance issues have been reported since by the users. Proxy's and Poxy based Firewalls do not play nice together. Still monitoring.
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pwindellConnect With a Mentor Commented:
sounds good.
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S_DuncanAuthor Commented:
pwindell's responses were parallel to mine.
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