On Thursday evening, we have enforced TLS 1.2 on one of our NetScaler’s (Citrix gateway component). Due to this change, we see an increase on our Support of clients who cannot connect to their applications. If you or your client are receiving a “SSL error 4” error, you must update the citrix client on your device. To view a (variation) of the error message, have a look at https://downloads.aspex.be/sslerror4.png
To update the citrix client on Windows devices, we advise to first use the “Citrix Receiver Cleanup utility” to completely remove the current installation. You can download it here: https://downloads.aspex.be/ReceiverCleanupUtility.exe. Afterwards, you can install the latest version of the citrix client manually. You can download it from: https://www.citrix.nl/downloads/citrix-receiver/windows/receiver-for-windows-latest.html It is important to close all your browser windows (internet explorer, google chrome, firefox, edge) before performing the installation.
Posted Mar 16, 2020 - 11:56 CET
In progress
Scheduled maintenance is currently in progress. We will provide updates as necessary.
Posted Mar 12, 2020 - 18:00 CET
Update
We would like to remind you that on Thursday, March 12, we will start with the enforcement of TLS 1.2 on our citrix environment. Make sure that you and your clients are using a citrix client that allows TLS 1.2.
If you have further questions, do not hesitate to contact us
Posted Mar 09, 2020 - 12:41 CET
Scheduled
On March 12, 2020, we will start enforcing TLS 1.2 on our citrix environment. This means that we will not allow connections made by TLS 1.0 or TLS 1.1. Make sure that you and your clients are using a citrix client that allows TLS 1.2.