Buddy.. what superprash mentioned is 100% true...
> Dont connect anything in the main line except ur adsl line.
> Check whethr u have connected in appropriate line.. i.e... ADSL & telephone line...
It should be like this...
Main Line Box --> Adsl Box --> Net & Ph(two lines)
Normally in the mail line we would be having two out's.. we should use only one out in that..
Hope im not confusing...
One more info.. if ur telephone line is got LOOPING.. then this problem will come.. anyhow i dont know wat is looping...