Tried this unit against 2 different Wireless Routers (Linksys and Dlink) and it would only function when no encryption was set on the routers. Also, the configuration tool included with the package would not function correctly with the Adapter (kept saying 'invalid password'). Once the version was downloaded from linksys, I was at least able to configure the unit.Gave up in the end and donated them to a church for use with their unsecured network.