Error: Cannot connect to Citrix Server. Proxy detection failure: Improper result from proxy auto-co Error: Cannot connect to Citrix Server. Proxy detection failure: Improper result from proxy auto-co Error: Cannot connect to Citrix Server. Proxy detection failure: Improper result from proxy auto-co
Citrix states in their article: CTX103872
Document ID: CTX103872, Created on: Apr 21, 2004, Updated: May 25, 2006
Products: ICA Win32 Program Neighborhood Client
Symptom
Attempting to connect to a published application results in the following error message:
“Cannot connect to the Citrix MetaFrame server.
Proxy detection failure: Improper result from proxy auto-configuration script.”
Troubleshooting
Set the static IP of the proxy server within the browser to determine if the issue is related to the script.
Create a simple Pac script based on information at this location.
http://wp.netscape.com/eng/mozilla/2.0/relnotes/demo/proxy-live.html
The following is an example of a simple Pac script:
function FindProxyForURL(url, host)
{
if (isPlainHostName(host) ||
dnsDomainIs(host, ".netscape.com"))
return "DIRECT";
else
return "PROXY w3proxy.netscape.com:8080; DIRECT";
}
Cause
Just before the word DIRECT in the lines below, the port number 8080 is preceded by a semicolon instead of a colon.
/* Host is NOT local. Load balance between proxy servers by hashing host name */
else {
var n = URLhash(host) % 2;
if (n < 1)
return "PROXY x.x.x.x:8080; PROXY x.x.x.x:8080; PROXY x.x.x.x;8080; DIRECT";
if (n < 2)
return "PROXY x.x.x.x:8080; PROXY x.x.x.x:8080; PROXY x.x.x.x;8080; DIRECT";
}
Resolution
Change the two semicolons to colons.
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