We help IT Professionals succeed at work.
Get Started

Issues browsing to specific site in IE from Windows 2003 Citrix server

Last Modified: 2012-07-15
I have a very strange issue and I hope someone can help.


- Six servers
- All are Windows 2008 R2 except for our two XenApp servers which are Windows 2003 R2
- Two DNS servers that are forwarding to OpenDNS for malware filtering only
- Citrix XenApp Fundamentals on the two Windows 2003 R2 servers


When a user (or an admin) tries to browse to http://www.grantsolutions.gov from Internet Explorer on either Citrix server, they get a "Page Cannot be Displayed" message. All other servers on the network can get to the site successfully.

Steps Taken:

- Tested from Firefox, it works without issue.
- Tested from Google Chrome, the page fails to load, but I recieve an error regarding the site's SSL Intermediate certificate and hostname certificate.
- Manually installed all the certs from Entrust.net (the site's SSL authorative)
- Tested ping, nslookup, telnet and tracert. All succeed without issue.
- Cleared all DNS cache
- Reset IE browser, added site to safe sites, disabled pop-up blocker... etc.
- Tested in IE with add-ons disabled
- Ran a malware scan and verified that the hosts file was not corrupt
- Checked the Winsock, no issues found
- Tested on another client's Windows 2008 R2 server running Citrix XenApp, I was able to browse successfully in IE
- Tested on another client's Windows 2003 R2 server running Citrix XenApp and the site failed with a "Page Cannot be Displayed" error
- Verified that other HTTPS websites open successfully on both Citrix servers

Investigation Outcome:

I believe that the problem possibly lies with the website's SSL certificate and how Windows 2003 handles trusted root certs with Citrix installed. Unfortunately, I'm at a loss as to what EXACTLY is the cause.

Any help would be appreciated!


Watch Question
This problem has been solved!
Unlock 1 Answer and 5 Comments.
See Answer
Why Experts Exchange?

Experts Exchange always has the answer, or at the least points me in the correct direction! It is like having another employee that is extremely experienced.

Jim Murphy
Programmer at Smart IT Solutions

When asked, what has been your best career decision?

Deciding to stick with EE.

Mohamed Asif
Technical Department Head

Being involved with EE helped me to grow personally and professionally.

Carl Webster
CTP, Sr Infrastructure Consultant
Ask ANY Question

Connect with Certified Experts to gain insight and support on specific technology challenges including:

  • Troubleshooting
  • Research
  • Professional Opinions
Did You Know?

We've partnered with two important charities to provide clean water and computer science education to those who need it most. READ MORE