I have a Cisco 2811 running Cisco IOS which is the primary router for a multilink site connection. We have 2 links going to one site, both are about 1.5 MB or so. VNC runs HORRIBLY when connecting to a lot of the machines in that site. That amount of bandwidth should be plenty. Especially since the primary is a T1 with uber low latency. I've checked and when we are VNCing there is hardly any bandwidth consumption, so bandwidth constraints should not be an issue neither should lag. So all I can think of is that I need to run QOS to try and boost the traffic priority. But I'm not sure how to do this. I want to prioritize VNC traffic.