Hi, Can anyone help me with the following? Here’s few details that may help you: nearly two months ago I had a virus on my pc that forced me to reinstall the OS with the recovery disk. After installation everything was fine including the internet connection but I noticed on DM that both integrated NIC and firewire were not installed (I assume the OS image was done without those two devices), that is there was a yellow bang on the NIC and the firewire wasn’t even detected. I did not care much about it because I do not use them so I decided to save some IRQs free and left it that way. Last night unfortunately I thought to install the NIC and found the drivers in the driver folder of the OS. After a while I noticed that my internet connection was gone. The cable modem (Ambit 351000) was ok in DM but took the MS private address for no reason and could not pick up the NTL (my ISP)DHCP server. I then decided to reinstall the modem and everything went fine until the installation process got to the IP renew window. I got the following error message: cannot release new IP. There is two network adapters on your system with DHCP set: the NIC and the USB cable modem packet scheduler miniport…..which I have never seen before, it probably came with the installation of the NIC and firewire. So I disabled the NIC from DM and when I tried to get a new IP address from NTL there was only the cable modem packet scheduler left that was preventing my modem to get an IP address. Probably the NTL server thinks that I already have an IP address (the packet miniport) so it cannot release another one to avoid duplicates or other conflicts) I then did a bit of a research and found out in my system info that this packet scheduler is installed by psched.sys (an MS file) to guarantee QoS on packet transfers. In fact this miniport is assigned to any network device on my system that may interface with the outside world such as network card, modem and so forth. It also creates a WAN miniport for each of them including the firewall. I also tried system restore but it cannot restore the system as now the pc detects the NIC and firewire so hardware-wise is not possible to restore it. Before taking extreme measures (reinstall OS with recovery disk) I am in desperate need to hear your opinion. Why with this packet scheduler the modem cannot function anymore? Has anyone experienced a similar issue? Regards, Roman

Roman: Clark found this on another post...a place to start: http://www.microsoft.com/windows2000/techinfo/reskit/deploymentscenarios/scenarios/qos_troubleshoot_qos_rsvp.asp