Internet Light is red

Im on ptcl 1 mb student package, and using Aztech 605EW router the problem is that the DSL light is steady (green) but Internet light is red which I think indicate authentication error but when I restart the router it works fine.. before I was using LDN never faced such a problem.

Someone please help

MAKE A CONNECTION WITH PPPOE AND GIVE YOUR USERNAME AND pw correctly and then save settings. you are connecting manually which is not good.

I also had this problem it is from exchange ask them to do it....