This could be due to many things, the first is a security measure used in some networks known as MAC filtering. This is where the wireless access point has a list of known devices which are allowed to connect, and all others are denied access. To resolve this, either MAC filtering needs to be disabled on the wireless access point, or the InFusion™ MAC address needs to be added to the list. To locate the MAC address, see the ‘Information’ screen under ‘InFusion™ Setup’. Another possible problem is encryption. The InFusion™ may not have the correct WEP key stored for the given network, or the network may use a different encryption protocol, one unsupported by the InFusion™. Finally, wireless access points have a maximum number of simultaneous connections; ensure there is a spare connection available.