Bose link AL8 connection problems
I had a similar problem, though intermittent, using my 48 with the AL8 and room-mate speakers. I kept getting a "no signal received from media centre" message on the remote in the second room.
Assuming that the batteries are ok and you don't have a hardware problem, the problem might be that the 48 is not picking up the signal from your remote control in your second room. The signal from your remote control is a radio signal that goes directly to the 48 - it doesn't communicate via the AL8 receiver. I think the orange light will only turn green once a signal is being transmitted from the transmitter unit plugged into your 48 media centre, and this won't start transmitting until the media centre gets a signal from the remote telling it to switch on.
The aerial for all the remote controls is contained in the power cable that links the 48 lifestyle unit to your VS-2 unit. Make sure that this is uncoiled and oriented vertically, as far away from other cables as possible.
If this doesn't work, you can get an antenna extender that plugs into the RC socket on the back of the lifestyle system. Again, orient this vertically. You can get these from Bose.
Is there anything in the wall that might be blocking the radio signal? Lots of metalwork for example?
If orienting the power cable from the VS-2 doesn't do the trick, I suggest that you go to a local Bose shop. (An actual Bose shop, not just an electrical or hifi store stocking Bose products). I explained my problem and the tech guy gave me an extender gratis (its basically just an FM aerial wire by the look of it). I installed it this morning and, so far, its seems to be working ok. As my unit is fairly new, he also offered to have the kit back in the shop to check it all out and, if that didn't work gave me Bose technical support number. He even offered, if all else failed, to send a guy out to my home to get it working - and I didn't even buy it from there!
Hope this helps.