I am having some issues with a Compaq pc connecting to the internet, I am not getting an ip address. I connected the same cable to a laptop to the router and internet worked fine, thinking it was a faulty ethernet adapter I replaced it but still the same problem. Device manager reveals no problems with the hardware but if I try ipconfig/release I get the message "The operation failed as no adapter is in the state permissible for this operation" I have reset tcp/ip network stack and reset the winsock catalog, I have ran several anti malware programs and removed several items but still no resolution. If I go into network adapter settings and select network connection details the box is empty, no ip address's. The system is running win 7 ultimate. Has anyone any further ideas?