I had wireless 150n pci card on pc together with onboard lan working fine.
Moved card to new pc, same OS Win7. Now not working.
Placed card in old pc works fine.
Conflict with onboard lan?
Are you just checking the Device Manager for conflicts/errors?
My guess is that your routing table / configured IP addresses for the combination of onboard LAN + WiFi is just incorrect on the new PC.
Does the WiFi card work when you disable your onboard LAN?
Usually when you install the proprietary WiFi software, it overrides/disables the Windows' AP detection.
See if the problem goes away once you uninstall the software.
Not installed software included with card, only drivers.
Must also mention Device Manager shows card installed ok, MS Virtual Wifi ok, then there is a PCI Simple Communication Controller not with correct driver.
The PCI Simple Communication Controller only shows up when installing the wireless card.
All MB drivers were installed ok & no issues before this.
Tried re-installing & updating driver from net to no avail for the PCI Simple Communication Controller.