We recently took over a client running a Hyper-V Cluster as well as a Citrix Farm. They brought us in because they are intermittently running into performance issues in which it will take users 5 minutes to log in or Exchange locks up or other issues. Most of our Expertise is VMware and Terminal Server. So, we are starting to dig into this for the client, but before I recreate the wheel, I need to know where I should really start digging in to find out if it is Hyper-V, citrix, or other. We have looked at the Hyper-V boxes and they are dual quad core with 96gb of memory and there are 4 of them. From first look, I am not seeing any resource issues. I have read some posts about checking TCP Offload features as well as check processor configs on the VMs(Multi vs Uniprocessor). They truly are not running a ton of heavy apps. Any help you can provide would be greatly appreciated! THese could have simply been set up wrong and we need to tweak the settings. Please help!