Recently I am facing issues with my Airtel HD STB. After I power ON STB from Standby, there is no Audio Video for last view channel. Audio Video doesnt recover for any channel. If I check in Settings Menu for Signal strength, it shows signal strength and Signal quality is good. But still there is no A/V.A/V recovers after STB is reboot by switch OFF/ON Mains Power supply.Anybody else facing this issue on normal HD STB (without recorder)?