Strange PTCl Shiro Modem Issue

I am facing a problem in my PTCL shiro Modem .The modem dsl light automatically turn off.and no internet working when i try to ping the modem ip ( the gave me timeout.So when i reeboot the modem the dsl start to blink but soon turn off and also i didnt get any ip on my pc it give me ip (169.x.x.x).When i upplugged the dsl cable and reeboot the modem than i will get the ip on my laptop but soon after plugging the dsl cable the same thing happen (cant ping the modem ip ).Can anyone of you face the same issue before.I am using 1mb Link.

contact their helpline...

First try to reset it. if it doesn't help your Modem needs replacement.