I am trying to link a Windows XP PRO machine and a Windows 98SE machine using two Netgear MA111 USB adapters. The machines are some way apart (five floors approx) up a long set of stairs with metal banasters.

I have set the dongles up so they can nearly see each other directly )line of site) though.

The Netgear Utility indicates only a 19% signal on both machines.

Before I ask for real help is the signal strong enough to share an internet connection?

Both adaptors are set up in Ad-Hoc mode with the same SSID.