I agree. I use MAC filtering on my router and the remote would not work until I added its MAC address to the router.
I use a repeater and it works great with the remote. The only issue is that the remote does not move between the router itself and the repeater. In fact, nothing does but the remote seems to get "lost".
I have the repeater near my deck and it allows the remote to work perfectly.
Dan - I am guessing that your router is somewhat near your receiver?