I am tired running around all important and allways busy Network engineer's offices in my company. I need help. I am a programmer and I hope that covers my background.
Last week our engineers installed ISA in place of Proxy2. After that quite regularly but NOT always I am getting firewall challenge when ever I try to access sites on the internet and when I provide the correct info it does not take it. If I cancel out from the NT/firewall challenge after three cancellation it is locking my user account and I have to run to the network engineers again.
Few minor things that I noticed may help in understanding the problem:
When I am having problems to get on the internet due to the challenges if I try to go to our company public website I am getting the same challenge from few pages and If I cance out at the challenge screen still it is loading that html/asp page. But this is not happening when I am browsing the internet, If I cancel at the challenge box it is counting.
As usual the engineers say this is a browser/client issue. I strongly think it is a ISA settings issue.
Here is the full error message from ISA::
HTTP 407 Proxy Authentication Required - The ISA Server requires authorization to fulfill the request. Access to the Web Proxy service is denied. (12209)
Internet Security and Acceleration Server
Technical Information (for support personnel)
The gateway could not retrieve the requested page.
+ ISA Server: dmzprox05.dmz.abcxyz.com
Time: 4/10/2001 6:52:35 PM GMT
My MSN messenger and Yahoo messenger are also not working. But I can live without them but not with this frustrating intermittet internet access problem.
Any help is greatly appreciated,