It is likely that your broadband provider will look at the fact that your router is often "losing connection" and infer that your cabling is dodgy, then reduce

It is likely that your broadband provider will look at the fact that your router is often "losing connection" and infer that your cabling is dodgy, then reduce your connection speed to try to "help". Also, 15-20W is a little high - my modem uses 3.9W.