Unable to launch Citrix Xenapp 6.0 Desktop

Hi Experts,

I have a Citrix Xenapp server that I configured but I am not able to launch the desktop.

I am able to authenticate fine and is able to see the Citrix-Desktop Icon but when I click on the Desktop icon to launch the desktop, I am getting these error messages:

1 -  Your client platform is not supported by this Web site. Contact your system administrator.

2- Unable to launch your application. Contact the help desk with the following information:

Cannot connect to the Citrix XenApp server. There is no Citrix XenApp server configured on the specified address.

Any idea how I can resolve this error messages ?

Thanks
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TeavanaAsked:
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TeavanaAuthor Commented:
Hi Dkotte,

Thank you for this information. One last question ....

When I installed the xenapp software, I only selected the following roles:
- XenApp
- Web Interface

I did not select the Citrix Secure Gateway (CSG) option. should I have installed this role ?

How can I check to see what roles are installed on the XenApp machine (apart from checking the installed programs in control panel).

The reason why I am asking is ..... I installed a stand alone citrix server a few months back and I was able to access this server remotely and I do not remember configuring a CSG, just the web interface.

This was my first Citrix installation in an AD environment.... just wondering if the two are related in anyway.

Thanks
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Sekar ChinnakannuStaff EngineerCommented:
try to telnet <server ip> 1494, make sure you have a proper route has been configured. also http://discussions.citrix.com/topic/345082-there-is-no-citrix-xenapp-server-configured-on-the-specified-address/
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TeavanaAuthor Commented:
Thank you, I will try this now and report back.
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TeavanaAuthor Commented:
I got ICAICA .....
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Sekar ChinnakannuStaff EngineerCommented:
can you check and make sure all the services are in running state, if possible reboot the server and check.
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TeavanaAuthor Commented:
I will reboot the server now. I notice that there is no XML service under services.

Any thoughts
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Sekar ChinnakannuStaff EngineerCommented:
is this server act as data collector role? if not then no worries.
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TeavanaAuthor Commented:
I would say yes, this is the only server in the farm.
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Sekar ChinnakannuStaff EngineerCommented:
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TeavanaAuthor Commented:
Thanks, I will register the port.

Should I use port 80 or 8080 for the port. I read some where that the port must be share with IIS.
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Sekar ChinnakannuStaff EngineerCommented:
it depends on you, I prefer to go for 8080
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TeavanaAuthor Commented:
OK, that is what I am doing now, thanks
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TeavanaAuthor Commented:
Thanks, we were able to resolve item 1 but I am now getting this messages:

Unable to launch your application. Contact the help desk with the following information:

Cannot connect to the Citrix XenApp server. There is no Citrix XenApp server configured on the specified address.

Any thoughts
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TeavanaAuthor Commented:
Do you think a hot fix will fix this issue, I do not have any hotfixes installed.

I am running xenapp 6.0
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Sekar ChinnakannuStaff EngineerCommented:
change IMA\XTE service to run as local account from network account. Make sure to grant full access to IMS folder under C drive. also try to recreate the lhc http://support.citrix.com/article/CTX759510
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TeavanaAuthor Commented:
I get this error message when I try to install the hotfix
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Sekar ChinnakannuStaff EngineerCommented:
which one you trying try to install roll up pack 2 http://support.citrix.com/article/CTX133882
what error you are getting
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TeavanaAuthor Commented:
Taking these steps now
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TeavanaAuthor Commented:
I see the  XTE server service but no IMA service
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TeavanaAuthor Commented:
Your link for the hotfix is working, I was getting the attached error message before
error1.png
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TeavanaAuthor Commented:
Did all the suggested steps but the issue is the same :-(
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Dirk KotteSECommented:
The IMA Service should run (full Name: Citrix Independent Management Architecture)
is the client within the same subnet as the server?
is there some accesslist/firewall between them?
is the server-firewall configured correctly? Try to disable the server firewall temporary.
is the a virusscan/endpoint-security installed (McAffee / Symantec / ...) the can block packets also.
try to catch the launch.ica and check the contend (or post them here).
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TeavanaAuthor Commented:
I am trying to access the server remotely and from the same subnet.

I check the event log and I notice that I was getting an error message the Citrix ICA listener was disable.

If found an article that says this KB2653956 caused the listener to go off-line.

I un-installed the KB, rebooted the server and now when I try to run an discovery process it fails.
.
do now I cannot not log into the server from citrix client
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Dirk KotteSECommented:
if you reach port 1494 (ICAICAICA...) the ica listener is up.
if you change the CTX-XML-Port (ctxxmlss) you have to make this changes within the web interface configuration also.
are you able to see the app-list within the webinterface or other client?
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TeavanaAuthor Commented:
I can reach the port 1494,
I changed the CTX-XML web interface and command line.

I am not able to see the App-list with the web interface or the client.

Should I just blow this server away and start over ?
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Dirk KotteSECommented:
rebuilding the server is an option ... sure.

are you able to logon to the webinterface ... or what error is displayed.
with WI errors you should see messages within the eventlog.
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TeavanaAuthor Commented:
I was not able to log into the web interface and I could get the app-list to during the discovery process it failed.

I am in the process of wiping the VM and starting over now.

Any thing I should watch out for ? Thanks
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Dirk KotteSECommented:
no, should be simple ...
I would suggest install all from the xenapp cd with the installer provided.
install newer versions (possible WI) late.
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TeavanaAuthor Commented:
for remote desktop services, should I installed this separately  or from the xenapp installer.

Also, should I do the ISS integration option or No

Thank you again for all your help, I really appreciate it.
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Dirk KotteSECommented:
i allways use the installer for RD services and IIS integration.
if you use the IIS at this server you should also select "integrate with IIS" ... also if you choose to change the XML Port later.
if you need the WebInterface at this server, you need the IIS.
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TeavanaAuthor Commented:
Thank you, I will follow your recommendations. I will update you as soon as I finish install the Xenapp part.

The OS is done, just doing updates.
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TeavanaAuthor Commented:
I am getting the same error message again.

Unable to launch your application. Contact the help desk with the following information:

Cannot connect to the Citrix XenApp server. There is no Citrix XenApp server configured on the specified address.

The web interface tries to launch and then times out.
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TeavanaAuthor Commented:
Update,

I am able to connect internally via the web interface but when I try to login remotely, I am able to authenticate but the web interface times out.

Any thoughts
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Dirk KotteSECommented:
you see the apps, but if you try to start the app you get the time-out... right?
do you using NAT?
you have different websites for internal and external access?
catch the launch.ica file. The content mostly gives you a hint.
to get the launch.ica use a pc without citrix-client installed or a browser with high security settings (prompts for "save file")
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TeavanaAuthor Commented:
you see the apps, but if you try to start the app you get the time-out... right?  Correct

do you using NAT?  Yes

you have different websites for internal and external access?

I am using the internal IP inside and  a public IP from Out side (NAT)

catch the launch.ica file. The content mostly gives you a hint.
to get the launch.ica use a pc without citrix-client installed or a browser with high security settings (prompts for "save file")   I will try this option.

I was able to get the out-side access to work by performing the following command.

ALTADDR /set x.x.x.x (where x.x.x.x is the alternate external IP address of the XenApp server)

Are you aware of this command function ?

If yes, can you help me to understand the function ?

Thanks
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Dirk KotteSECommented:
the altaddr command is to set an additional alternate address at the server.
without this address the launch.ica file contains "please contact me by my real (internal) IP".
This can't work, because this ip is not reachable from outside mostly.
with altaddr set this IP is written to the launch.ica also. so the client is able to find the server.
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Dirk KotteSECommented:
if you place a CitricSecureGateway behind the NAT boarder (within the DMZ or LAN) the client connects to this CSG with SSL (TCP443) ... for app-enumeration and session initiation.
Here the CSG relays the data to the server(s) and you don't need ALTADDR.
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Dirk KotteSECommented:
you can run the Citrix server with Webinterface only (with altaddr and NAT). But you should not.
Without SSL your traffic ist not really good encrypted.
CSG is a good way to secure the traffic. within a single server installation I have the CSG at the same server installed.
With CSG the traffic is more secure, the config is more simple (no NAT), ...

Which components are installed you see at the managementconsoles...
AppCenter for XenApp, WI-Console and CSG console ... but best within installed programs in control panel.
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TeavanaAuthor Commented:
Thank you for your help and recommendations, I appreciate it.
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TeavanaAuthor Commented:
dkotte's recommendation is the solution.
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TeavanaAuthor Commented:
Thank you
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