Migrate Citrix NetScaler ADC from pooled to permanent licence

Citrix NetScalers or ADC’s have two different types of licencing available to them. Either the traditional permenent licence where you upload a licence file to the appliance reboot it and its done, or pooled licences. Pooled licences are more flexible and require Citrix ADM to host and manage these licences. They can be checked out by NetScalers, enabling you to quickly upscale/downscale and reallocate licences quickly. However there are some problems here, when switching to pooled licences, Its a lot more administrative work as these licences tend to expire and you have to “manage” these licences like you work with CVAD licences. Also I’ve yet to come across and real use case where you need to juggle licences for NetScalers (ADC’s) in this manner and I’ve worked with A LOTRead More…

Citrix Audio Over UDP Dropping mid session

Citrix Audio Over UDP feature is great for improving audio performance in Citrix sessions and Ray Davis has a good article on how to get it working correctly link HERE. One issue I’ve come across recently is reports of audio failing to work mid-session. Often reported as audio dropping mid session.  The symptoms were if a user was in a call there the audio was working fine however after the call finished and another started all audio would drop from the session. No system audio, no voice app audio nothing. During the issue the audio devices attached to the Citrix session (headsets, mics speakers etc) were still showing as connected. After a bit of digging we found the cause to be two things. due to the UDP nature of the audio after a period of audio inactivity the audio over UDPRead More…