Region : India

Model : TL-WR740N

Hardware Version : V4

Firmware Version : 3.17.0 Build 140520 Rel.75075n

ISP : MTNL Mumbai

i bought this router last year in december 2013. It was working absolutely Fine till now...
but now out of nowhere past 4-5 days... routers System Light is getting ON/OFF.... its not flashing.. like wireless light do...
i didnt know wat was the issue...so i did a Firmware upgrade...last night... but nothing changed...i have one PC connected to it...it doesnt hv any problm...
The problem is with My Mobile phone's WIFI... it supposed to turn blue and blink after successful wifi connection, but now it has turned Grey and blinking and i cant access most of the Sites sometimes...
How to solve the system error ?
Any help would be really appreciated....
Thanx in advance...