my bsnl broadband S.N.R drops to 6-7db during day times(from morning hours @ 9-10 a.m particularly when all the offices,shops,etc starts ) but begins to normalise after dusk (after 8-9 p.m) to its best 18-19 db at late night hours after 1-2 a.m Asked s.d.e local exchange, said this is line...