Check that your broadband modem is connected directly in to a telephone jackpoint using only the supplied cable and filter.
Why? A telephone extension cord or multi-adapter should not be used to connect a modem to a jackpoint because it often causes customers to lose their Internet connection by reducing the quality of the connection.
How? If you find an extension cord or multi-adapter is in use, remove it. If your modem and computer are now too far from the jackpoint, move them closer.
Tip: If your computer needs to be moved back, consider using wireless or a long Ethernet cable. These can be up to 100m long without compromising the connection quality.