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Citrix is a very useful tool with easy to use features. How beautiful will it be if this useful tool can work without any errors? Many users experience one or two issues with Citrix and that is the reason that brings this post up. This post in on how to solve Citrix receiver cannot start Citrix Receiver Cannot Start App Please Contact Your Help Desk Read More ».

1. This article is intended for use by System Administrators. If you are experiencing this issue and you are not a System Administrator, contact your organization’s Help Desk for assistance and refer them to this article. To fix the issue, complete the following procedure: Uninstall Receiver. Open command prompt. Run the following.
2. Now Citrix should be aware of it and so are you. Don’t try to run Citrix Receiver for Linux remotely (internally is totally fine though then the STA is not involved at all), but you still have to ensure that you get the Receiver installed properly using this crazy workaround to get it to work.

• Receiver for iOS

Symptoms or Error

When attempting to start applications from an iPad with iOS 5.x and Citrix Receiver 5.5.x through Citrix Access Gateway, application start fails with the following error message:

”Cannot Open Page. Safari could not open the page because the server stopped responding.”

Solution

Download and Install - Latest Citrix Receiver
OR
Workaround
If using previous versions of Receiver and you cannot install the latest version, complete the following steps:

1. Verify that certificates are valid.

2. Verify all STA’s are up and running.

3. Verify that port 1494 is open from your gateway and XenApp server.

4. For CAG verify that port ICA 1494 is in the Access Control list.

5. Take Network Traces to determine point of failure (Links are provided in Additional Resources section).

6. Isolate the environment to determine failing segment.

7. Test with a Stand Alone IIS Server with CSG/CAG and XenApp from a client within the same subnet. Bypass any other firewalls in environment.

Citrix Receiver Will Not Connect To Server

Problem Cause

There have been changes to iOS 5 platform, which affect connectivity issues from the device.

Important Changes

• iOS 5’s TLS implementation has been upgraded to support the TLS protocol version 1.2 as opposed to TLS 1.0 that worked for previous iOS versions. http://developer.apple.com/library/ios/#technotes/tn2287/_index.html

• Support for X.509 certificates with a MD5 hash has been disabled for use as trusted certificate. http://support.apple.com/kb/HT4999

• Default system trust settings have been reconfigured to not trust Digicert issued certificates. http://support.apple.com/kb/HT5052

Note: If any of these configurations are in place in your network you will experience client authentication time-outs because of a failed SSL handshake.

Citrix Receiver Cannot Add Account

Additional Resources

CTX122965 - iPhone Receiver Error:ICA engine error 29 The SOCKS 5 handshake failed

I have seen that error message but in my situtation we didnt have the outage or anything that sort of connectivity issue.

It was only happening to couple of users not all. And it was happening to those users who are in the head office and dont access over citrix.

For one user I remember recreating a profile and it fixed. The other user just deleting the certificate from the registry and it worked.

Citrix Receiver Could Not Contact The Server Address

Then I pretty much disabled the citix plugin on those machines.

Unable To Launch Citrix Receiver

Would you send us thru those IE settings that you had to configure for your clients? Much appreciate it!

Citrix Receiver Could Not Connect To The Server

Is your ICA URL is it HTTPS:... can't you create another one without the certificate for http:// and that can be used internally? Just a thought!