I have 3 DELL Desktops/XP SP1, all new 2400/4600, 128MB or better, 2.4 GHz or better, Celeron or better. All connected to the BEFW11S4 V1 wireless router and working fine wireless throughout the house with V2.6 USB WUSB11 adpaters, and even one with the V2.0 upgraded w/ XP Driver. Been on the phone with Linksys for 2 weeks - cannot get the V2.8 adapter to work on any computer that works fine with V2.6. The connection w/ V2.8 drops out intermittantly on any computer it is on. Anyone else run into this problem. Linksys has told me they have "exhausted" all ideas and left me holding a worthless adapter. Ideas that DID NOT WORK included: a complete re-load of XP, returning the V2.8 to the store for a new one, Tweaking endless parameters, Re-loading drivers endless times, bumped to DELL who stated new motherboard was needed (diagnostic test all passed though), XP with HOTFIXES, XP (virgin) without HOTFIXES ....on and on ... Thanks.