A number of people have posted that they can not achieve the 2x connectivity and the signal can't go above 130Mbps.
The same has happened to me, and I'm a little concerned that this product is not listed in the "Select Buffalo product" section of the support/ downloads page.
I'm also getting the distinct impression that this is a Wireless-G ethernet converter (WLI-TX4-G54HP) firmware, with Wireless N hardware. This is mainly due to only being able to select A or G wireless mode from the settings page.
If anyone from Buffalo can give some feedback as to wether the product will be supported in the future, (especially firmware) that would be great, together with letting us know how to get the much coveted 270Mbps speed that our routers can support.
My router is a netgear DG834N ADSL, with the settings set to "upto 270Mbps".
Thanks