Can someone make sense of this internet connection issue?

[Ajenthan]

Your internet is interfering with somebody's else's line in summary. The guy or guys that came to your house to fix up the internet connection may have to come back to install some device that separates your connection from interfering from some else's line (Old ISP that you were probably with). Thats their own side. On your side of the bargain, you may still have some other ISP connection either active or deactived temp, so you may have to deal with that first to permanently deactive from your old ISP before going on with your new ISP.