Hi I have 2 XAV2001 that I installed in February -- one in my home office and one in my basement. The house is new with new electrical wiring and fuseboxes. The connection worked well in the beginning with tx 50mb and rx 10mb Over time the connection has deteriorated so that rx is never better than 5, and tx is often 30-40. This is tolerable, except that now many times the basement adapter does not show up at all using the netgear utility and there is no connection between the two points Other than the change in seasons there is no change in anything that is plugged in -- calls to Netgear get me nowhere.