Its the new firmware rogers pushed out. i had the same issue went to bridge and all lights went off, then restarted and the 2.4 light stayed on. Replaced the modem with another that had lower firmware and problem solved. The new firmware has a 5 in the version number and the older firmware doesnt. Hope this helps
I have the same issue and it happened around the same time as you. The 2.4 ghz light is on so I am guessing its a firmware issue.
Same issue, I have the 2.4Wifi light on.
BUT ... when I switched to gateway mode I am certain this light was not on for several hours.
It only recently came on. Is it possible that this is some type of exploit of the modem? Someone scanning for an exploitable router/modem, so they did not find mine right away, but once they did, made a non-broadcasting SSID wifi?
(I know, sounds a little paranoid, but explains the time differential between gatewaymode and 2.4wifi).
I'm curious if other people can confirm if their 2.4G wifi symbol flashes?
Mine is flashing very regularly (every 5 seconds) which seems less suspicous now, (more like a bug on a timer)