You are not seeing the issue on your linux clients because they do not support session reliability and communication is happening on port 1494. Check your sta configuration, both on the netscaler and web interface. Unable to launch your application protocol driver error. Citrix ica not listening on port 1494 the same may happens to rdp listener known issues with this security update. If yours is coming up connection refused and citrix has been told to use session reliability then that could very well be the source of your problems. Contact your heldesk with the following information. If you encounter this error, you can perform a quick test by unchecking the enable session reliability checkbox. Troubleshooting dtls and edt on the netscaler gateway. How to repair protocol driver error citrix xenapp 6.
Citrix troubleshooting and known issues adm help centers. When you navigate to filters sessions in citrix director, check boxes are displayed instead of the session data. Session reliability keeps sessions active and on the users screen when network connectivity is interrupted. Hello there, this is a message for the webmasteradmin here at khurramullah can i use part of the information from this post right above if i provide a link back to your site. Unable to launch your application, contact your help desk with thefollowing information. Solved citrix client protocol driver error spiceworks. If you suspect this is due to a network issue, you can try the citrix session reliability feature this can be enabled by the citrix administrator on the server side.
Citrix and the ica protocol runs on top of rdp thats the simplified version but pretty much how it works. When session reliability is enabled, citrix client reconnects to the server when the network connection is restored, without need for user reauthentication transparently for. This recipe will show you how to troubleshoot the protocol driver error messages that users may receive when they are unable to launch a published. The sta ticket has expired, cannot be found, or the connection to the secure gateway server from the client cannot be established. Resolving protocol driver errors for citrix ezinearticles. Assuming that one of my previous posts about blocked session reliability and ica ports does not apply to you. Sounds like session reliability is kicking in sometimes when they roam between aps possibly due to an. How to resolve the citrix protocol driver error all. Protocol driver errors can be intermittent, so this may not just be an admin vs. If it is enabled it could force your clients to use a different port to connect to citrix servers, a firewall could be.
External connections through the netscaler fail with a protocol driver error while. Common gateway protocol or cgp is running, disable it and attempt to connect again. How to resolve the citrix protocol driver error all citrix editions. If session reliability is enabled, xte service is required to broker the. Resolving protocol driver errors for citrix wedding.
Protocol driver error while launching applications. Disable the citrix multi touch driver and service by editing the registry of the vda. Session reliability closes or disconnects the user session after the amount of time specified in the session reliability timeout setting. One of the causes for this issue is that the nf file on the xenapp server is not updated with the new ip address of the server. My network colleauge didnt open session reliability port 2598 from netscalers mip and nsip to internal citrix terminal farm. These errors can be reproduced when disabling the network interface card nic on the secure gateway server, waiting for the clients session reliability to timeout, modifying the sta ticket within the ica file prior to connection, disabling the nic on the. Lc9871 custom administrators might not be able to retrieve the session details from a vda version 7. The session reliability port 2598 may be blocked between the secure gateway and the presentation servers. Id always thought to write an article on this specific topic, but it actually never came to writing, thats gonna change today with citrix solutions it was already possible to connect to your desktop from everywhere around the. Adaptive transport is a new data transport mechanism for xenapp and. After that, the auto client reconnect settings take effect, attempting to reconnect the user to the disconnected session. I am getting cannot connect to the citrix metaframe server. Starting with this release and with session reliability enabled, edt and tcp are attempted in parallel during the initial connection, session reliability reconnection, and auto client reconnect. Finally, if nothing else has worked in your attempt to solve your citrix protocol driver error, install the latest microsoft service packs and hotfixes on the client.
Techyv is one of the leading solution providers covering different aspects of computers and information technology. Citrix documentation configure session reliability. I am able to reach the web site, logon is successful, and i am able to see the apps folder i created. Resolving protocol driver errors for citrix summary networks. Protocol driver error external connections through the netscaler fail with a protocol driver error while internal connections to the same xenapp server are still successful. My name is aaron barker, and i am an it system administrator. The nf file is used by the citrix xte server service for session reliability. Complete the following steps on the server to recreate the ica listener. In rare situations, the error log will indicate that it could not be installed. Assign the port on which you want the servers in the farm to listen for attempts to reestablish dropped connections. We have a hardworking team of professionals in different areas that can provide you with guaranteed solutions to a blend of your problems. Ica port not responding or protocol driver error myxenapp. Open the microsoft management console mmc terminal services configuration tsconfig.
If the server isnt configured for session reliability but the clients are, theyre trying to talk to the server on a port it isnt listening on, hence the protocol driver errors. Citrix receiver will not try to establish a dtls connection unless hdx. With session reliability, the session remains active on the server. When session reliability is enabled, the ica client tunnels its ica traffic inside the common gateway protocol. Click next continue through the wizard and configure the desired settings. Click yes expand the action menu and click create new connection. Troubleshooting the protocol driver error message citrix xenapp. To indicate that connectivity is lost, the user display becomes opaque. Xenapp protocol driver error reliability server event. Cannot connect to the citrix metaframe server protocol driver error i am having no problems with any local users, or other web interface users. Users continue to see the application they are using until network connectivity resumes. Cannot connect to the citrix xenapp server protocol. When a citrix ica client connects to a citrix presentation server, it either uses tcpip port 2598 or port 1494.
Citrix protocol driver error system administrators blog. Application launch fails with protocol driver error after. If you experience slow connections to the xenapp services site, or issues such as missing application icons or protocol driver error messages, as a workaround, on the citrix virtual apps server and citrix secure web gateway or web interface server, disable the following citrix pv ethernet adapter properties for the network interface all. Protocol driver error, sesssion reliability, sta, xenapp, xte services on april 1, 20 by explorer. When i select an application in this case as a test it was notepad, i recieve an error. Cgp session reliability and session reliability encapsulates the ica protocol. Unable to launch published applications from xenapp 6. If session reliability common gateway protocol or cgp is running, disable it and attempt to connect again. Run microsoft windows update, open internet explorer and click on tools windows update and follow the prompts. Solved citrix connection issue networking spiceworks. When session reliability is enabled, citrix client reconnects to the server when the. If you can connect after disabling the session reliability, find out what firewall port session reliability is using from the citrix console and make sure that. If yours is coming up connection refused and citrix has been told to use session reliability then that could very well be.
One of them was the release of the enlightened data transport protocol. I created this space to give me somewhere to share my thoughts on anything information technology related, particulary cool new tools, scripts, software, etc. Application launch fails with protocol driver error after changing. When changing the static ip address of a server the applications fail to launch. This setting specifies the length of time, in seconds, the session reliability proxy waits for a user to reconnect before allowing the session to be disconnected. Session reliability is turned on, but the session does not reconnect. The citrix servers used for the secure ticket authority may have been rebuilt. This enhancement reduces connection time when edt is preferred but the required underlying udp transport is unavailable and tcp needs to be used.
You can start by looking at the xte logs in program files\ citrix \xte\logs. Open a ticket online for technical assistance with troubleshooting, breakfix requests, and other product issues. Sounds like you are having a problem with session reliability which by default will work on port 2598. With that enabled, your ica traffic port changes from 1494 to 2598, so that explains the problem. Session reliability is disabled on storefront configuration. Session reliability is enabled in the environment and it is unable to contact the ica listener the ica listener is no longer functioning and must be recreated. Users were unable to launch published applications if the session reliability feature was enabled and an option other than all network adapters with this protocol was configured for the ica protocol in the citrix connection configuration utility. In my experience if you install citrix and dont install any hotfixes you are going to run in to lots of problems with just about everything including this problem citrix protocol driver error. Have you enabled session reliability try disabling it. Having some issues setting this up correctly manage secure client access in citrix access management console. Contact your system administrator with the following error when launching desktop. Allow the port through the firewallhost packet filters. I have changed the idlewinstationpoolcount from 2 to 4 but it made no difference. After you install this security update on a windows server 2003 sp2based terminal server, remote desktop protocol rdp clients or independent computing architecture ica clients may be unable to connect to the terminal server.
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