Go to dial up folder right click your connection icon go properties,make sure your modem is listed in the connect using window. Do you have the drivers that came with the modem? You can not use the add new hardware to install the modem. These software modem use software ports not hardware ports. Two things you might try,one would be uninstall the modem drivers ,shut down and put modem in other pci slot,boot up and when windows finds new hardware install the drivers.If com port2 is listed in the device manger this is the hardware port and some modems have in the inf file to install to this port but windows think it is already in use and will not install the modem so you need to go into the bios and disable com port 2 and reinstall the modem in the same pci slot or you might just disable com port2 in the device manager,uninstall the modem drivers,reboot and when windows finds new hardware install the drivers. one more thing to check is the modem install instruction that came with your modem. Some modems with the agree chip set or lucent need the drivers installed first and there drivers have a setup.exe in the drivers,if the modem is already in the pci slot what needs to be done is remove the drivers,reboot and when windows finds new hardware click cancel until you get to the deck top,install the drivers from the setup.exe and it will install the modem. These drivers should work with your modem. before using them check the version that you have. These are the 8.30 only us them if it is an upgrade to the drivers you have if you have like 8.17 or so on. Check the drivers version because Lt modem have other chipset that use other drivers. Do you have the make and model of this modem. http://www.agere.com/entnet/modem_driver2.html