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The LUapps software virtualization system can be a bit complex to understand and use effectively.  Below are a few answers to questions you may encounter when using the system.

Where do files get saved?

This depends a lot on the particular app you're using, but generally, look for files to be saved in the 'VirtualFiles' folder in your H-drive.  The H-drive is backed up several times a day using two different methods, and is accessible both on-campus, and over the internet using the VPN. If you're using a Windows or macOS computer, you can also save files to your local computer -- see 'Open and Save Files in the Citrix Environment (LUapps)'

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How do I 'Unblock the Citrix plug-in'?

If you find yourself at a LUapps screen like this:

You'll need to quit and re-open your browser.  When you navigate back to '', you should be asked whether to 'Trust' luapps to use the Citrix Receiver plugin:

Click 'Trust' and you should get to the 'StoreFront' with all of the apps.

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I keep getting pop-ups about Citrix Receiver not being 'optimized' for my operating system. What's that about?

Currently, the Citrix Receiver client for macOS is written using 32-bit code libraries.  macOS is a 64-bit operating system, and recommends developers update their code to make use of that.  Hopefully, a future update will address this.

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Do I need to get a patch for the Citrix Receiver on my Mac?

In the short term, it's not a huge concern, but going forward, you would benefit from the available patch.  The macOS version of the Citrix Receiver client's mechanism for updating automatically when you connect to the server doesn't function, and the patch allows it to do so.  The security of the client software is the biggest concern, and having the most up-to-date version installed is the best practice.  It's available from the Citrix website, and you can download and install it following their instructions.

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I got a message asking 'How do you want to access files from this application'. What should I say?

You can control the Citrix Receiver application's ability to access files on your computer.  To start, it asks you what you want to do with a pop-up like this:

You should generally respond with 'Read and Write' so that you can both open files from your computer and save files there too, if you need to.  

If you want to change whatever setting you picked, you can go to the preferences for 'Citrix Receiver' and re-set them.  This is fairly easy in macOS.  It's more involved in Windows, so we recommend getting LTS assistance with that.

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I'm on-campus, but still can't connect to LUapps. What could be wrong?

The 'lehigh-guest' network is designed to provide short-duration access to the Internet for visitors to Lehigh who do not have a Lehigh Computer Account. Students, faculty, and staff should not use it.

To LUapps, this connection is considered an off-campus network. If you cannot connect to LUapps, even after installing the Citrix Receiver, it could be because you are using the 'lehigh-guest' network. LUapps requires the use of either a hardwire connection to the campus network, or a connection to the 'lehigh' network.

Follow these instructions to connect to 'lehigh.'



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How do I access a departmental file server from a Citrix app?

If you have access to a departmental file server, and want to access those files from within Citrix, you should map a drive to the file server with your computer before connecting to Citrix.  Once connected, your mapped drive will appear as a 'client drive' in the storage options list.  In the list the name will be followed by text in the format '(<drive letter> on <client computer name>)'.

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How long can I stay logged into LUapps?

An active session stays connected for a maximum of 12 hours.  Your session will be automatically disconnected once you reach 12 hours even if you are actively using the application.  Please consider a local installation or contact our HPC team if you need to run applications for longer than 12 hours.

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How long can my LUapps session be idle before it is disconnected?

Your session will remain active for 2 hours without user input before it is automatically disconnected.  Feel free to grab a beverage or a bite to eat as long as you can do it within 2 hours.

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What's the Citrix Workspace?

Citrix has renamed the 'Receiver' to 'Workspace', and given it a different icon.  The functionality is largely the same with some feature improvements and bug fixes.

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For additional help, please contact the LTS Help Desk at 610-758-4357 or