Citrix remote desktop connection problems

Hello,

I have just taken over the IT at the company, at present we use the citrix ICA client to connect remotely to the cirtix server. We use TCP/IP for the citrix server, and upto now we have had no problems. However, a employee has jst phoned me and told me he has connected to the internt through a proxy server using the following address set in the internet connections for IE. I have talked him through modifying the connection properties to reflect the proxy server, so we have checked the option use web browser proxy settings. However, we keep getting an IO error. I have tried the use custom proxy settings but again no joy for both SOCKS and HTTPS. The port he is using is 8080, which should be HTTPS connection but it doesn't work. Is it the firewall at the office that will be blocking his connection. I no the server is not down as I have accessed it while he has been trying to connect.

Please help urgent
CyartAsked:
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Asta CuTechnical consultant & graphic designCommented:
Sorry this isn't my area of expertise, but see your urgency; see if this sheds any light until others better informed step in here:
There is no issue launching ICA within ICA sesssions. However Citrix releases a pass-through client that is installed on the Citrix server which they claims improve session within session performances.

Is there any events in the event logs during which the server hangs ?
http://www.experts-exchange.com/Operating_Systems/Win2000/Q_20893183.html?query=citrix+ICA+https&clearTAFilter=true
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CyartAuthor Commented:
no nothing
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Asta CuTechnical consultant & graphic designCommented:
Which end-user OS and IE version?  Could be Pop Up Blocker of Firewall settings.  
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Asta CuTechnical consultant & graphic designCommented:
Quick query of MS for port 8080 shows this...
http://search.microsoft.com/search/results.aspx?st=b&na=88&View=en-us&qu=port+8080

Sorry to be scant here, but it's our family day and I have no time today; but did want to see if I could shed any light on the dilema due to your urgency.  Hopefully others will be here soon.
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CyartAuthor Commented:
windows 2000 client with ie6 I think!! I asked him to check firewall but he has no personal firewall installed on his laptop, only norton anti virus
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CyartAuthor Commented:
thanks for your help
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Asta CuTechnical consultant & graphic designCommented:
Let's see if this from Norton helps add some insight.... (at work, sorry for the delay, very busy this month)
A vulnerability scanner reports that the HTTPd proxy allows the CONNECT method, potentially exposing internal hosts
http://service1.symantec.com/SUPPORT/ent-gate.nsf/38e56e3d471fe42c88256bc1005cd7d4/01e00c8c0901d24988256d86007372ca?OpenDocument&src=bar_sch_nam
http://service1.symantec.com/SUPPORT/firewallvpnkb.nsf/8c00c3d377f30c6985256ab6005e7961/f9c55131f2d64fc485256b300075f27d?OpenDocument&src=bar_sch_nam
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brownmattcCommented:
Can the client connect to the Citrix Server and get a session?
What is the error message that the User is getting once he connects and tries to browse the web?
If he is only trying to get to a basic page like cnn.com does it connect?
Should he be using port 80 instead of 8080?
If you logon to the console of the Citrix server can you browse the web?
Are you sure you need a proxy server to connect to the Internet?


Matt
Citrix Certified Administrator (CCA)
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Asta CuTechnical consultant & graphic designCommented:
The MS query results posts a number of links that talk to that as well.
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CyartAuthor Commented:
sorry for the late reply, it was not resolved in the end as the admin team would not open the tcp or udp port so we could test that it was the proxy server, but I appreciate all your help
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Asta CuTechnical consultant & graphic designCommented:
Thank you, Cyart.  Best wishes and hope this Thanksgiving day bring you only good things.  ":0)  Asta
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Windows 2000

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