Yes, you are able to create an ad-hoc network on your computer and connect your iOS device directly to the ad-hoc network. This will allow you to use AirServer if a network is giving you trouble and you do not have the ability to adjust network settings.
Create a computer-to-computer ad-hoc network on a Mac:
Create an ad-hoc network on a Windows 7 based PC using Security type as WEP:
Create an ad-hoc network on a Windows Vista based PC using Security type as WEP: