I have a Motorola SBG900 cable modem/gateway. I had been using its wireless functionality for quite awhile, but I recently disabled the wireless interface (since I got an Airport Express which I now use for all wireless). Even though I deselected 'Enable wireless interface' (in the SBG900's config pages), the wireless light is still on, on the front panel of the modem. The wireless network which I had been using, doesn't exist anymore, but the indicator light is still on. Is this normal?