Router BT Homehub 1.5. Mesh Tower Computer (Year 2000) adjacent to Router. Mesh Notebook (Year 2002). Tests performed with same Belkin USB Adaptor. When I move the Notebook away from the Router, the signal strength drops from very strong to no signal in about 15 feet and no significant obstruction!. Sometimes the Notebook will connect downstairs but usually only when I hold it above my head. When I move the router downstairs, the Tower Computer loses signal. Have gone though online tests with BT India. I am looking for the cheapest solution. My daughters have no problem with connectivity anywhere in or out of the house. They have 2010 Dell and Mac. Do I buy a new computer? Do I wait for the new BT Homehub 3.0 which will mean a new contract. Will a more powerful Router solve the problem? Is the Belkin N Wireless Adaptor bought 2 years ago not up to the job or is it the age of the Mesh Computers. I fear the latter. I retired a few years ago and should not care but as a significant investor in my son's business and looking to implement a new accounting system with remote access, I have to make a decision before the start of the new tax year. Thank you for your opinions.