9 Februari 2021 was a special day for me. That day the word came out I was granted the privilige of becoming a Citrix Technology Advocate! What is a Citrix Technology Advocate Citrix Technology Advocates are Citrix User Group Community super-users. They are Citrix customers, partners, and employees who advocate for Citrix on their own time with extraordinary social impact. Whether it’s in a blog post, a webinar, presentations at Citrix user group meetings around the world, or in peer-to-peer discussions on support sites, their advocacy is invaluable to Citrix! The main objective of the CTA program is to provide Citrix enthusiasts with meaningful recognition…

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Recently I had a project at a customer who had an Private cloud environment based on VMWare. This environment was running in a datacenter and we had no access to the Hypervisor. After installing a fresh Netscaler 12.0 VPX from the OVF template we encountered a strange phenomenon: the Netscaler was running fine but after a while all connections to the Netscaler where dropped and the Netscaler would not be reachable over the network We had to log on to the console to reboot the Netscaler. After the reboot it would work for a while but then it would stop functioning…

Read More Netscaler 12.0 VPX Losing network connectivity

I frequently get questions from people about problems with installing .NET 3.5 features on Windows Server 2012 and 2012R2. Most problems are solved when adding the sources directory from the Windows installation media (so mount the ISO) during the GUI installation. Another way to do it, is by using the following command: Dism /online /enable-feature /featurename:NetFx3 /All /Source:d:\sources\sxs /LimitAccess This all works fine, but sometimes the .NET framework installation still fails. you keep getting the following error: 0x800f081f. The source files could not be found. Install Error! The cause for this error can be that you can’t install .NET Framework 3.5…

Read More Error installing .NET Framework 3.5 on Windows 2012 (R2)

We recently had a customer where we implemented a Windows 2012R2, Citrix XenApp 7.5 environment to replace a Windows Vista/2008 client server environment. After implementing the new Citrix XenApp environment the customer found a strange phenomenon where several applications where performing slower on the new XenApp servers then on the Vista workstations. When we ran several tests on the environment and found that on a server with only the OS installed the applications worked fine. But after installing the terminal server environment and the applications the applications that where using FoxPro databases (e.g. Accountview, Caseware etc.) where running significantly slower andcrashing more often  than on the old Vista…

Read More Windows 2012R2 and slow VFP (Visual FoxPro database) applications