Error connecting through the proxy - Protocol Error Exception

A user is trying to access a Citrix Access Gateway
after the user has put in the credential
the following error comes up

Error tunneling through the proxy
Error connecting through the proxy - Protocol Error Exception. Please contact your citrix representative.
APAGroupSenior Systems AnalystAsked:
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Sathish David Kumar NArchitectCommented:
solve it by adding in the Proxy Exceptions (in Internet Explorer) the ip of my Citrix servers (ex. 1.2.3.*). So the proxy is not used when the users try to access a Citrix server with an ip begining with 1.2.3...
ps: remove also the automatic configuration script is used.

Check this this will help full !!
APAGroupSenior Systems AnalystAuthor Commented:
couldn't find a solution

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