Can anyone pass on any words of wisdom about getting Xbox to networked wired over a HomePlug network? I have a HomePlug 1.0 network running at 85 Mbps, and have several PCs/laptops running XP and Win7, a Humax PVR and a Samsung smart TV all happily connected to the internet (via a Linksys WAG120N router) over this network, so I have a fair degree of confidence in it. However, my Xbox, alone of all my networked appliances, can't connect to the router - it repeatedly fails at the first stage of the Connection Test.
I don't believe I have a hardware fault with the Xbox, because, if I connect it directly to the router, connectivity all the way through to Xbox live is perfect. Its also not down to the electric socket I plug the Xbox's HomePlug into - if I connect my XP laptop to the same homeplug+cable+electric socket, everything is fine.
Any thoughts? I saw a post on the internet that suggested that perhaps IGMP versions or packet sizes could be the issue, but I've no idea how you would go about tweaking these on an Xbox.