BEETEL 450 TC1 ADSL2+Router :WLAN Problem


airtel adsl
I have purchased a BEETEL 450 TC1 ADSL2+Router from Airtel with my Airtel Broadband connection. It worked fine for 2 days. Suddenly on the 3rd day I could not find the wireless network in my laptop and then I found that the WLAN green LED is OFF even when I power on the router. I checked the router configuration by going to and I found that in the "Interface Setup" page there are only 2 options coming, namely - Internet, LAN. The 3rd option is missing which is "Wireless". I rebooted the router many times.I was using firmware ( Version TM4-0Q-020 ) .I downloaded the the firmware again in the router and initialized and restarted it again but the problem still persists. Can any one tell what happened to my router ? And how can this problem be resolved ?