After rereading the heading this may be posted in the wrong forum, sorry.
I installed my new MyBook WE and since then my Xbox 360 can no longer connect to the internet via the Powerline Mains Network Adapter.
It appears that the installation has changed a network service and I can't for the life of me find out what's different. The xbox used to have a manual IP and I have tested by changing to automatic but no difference. The powerline adapters do not have any configuration software or options and should work out the box, as they have done already.
Any input, suggestions or advice would be greatly apprecaited.