spmug 605 Seeking Opinions on Broadband Q. When I began cable-based Internet service all was well, but now I get interruptions almost every day. Are there surveys describing which high-speed connections are more reliable? A. The quality and reliability of your broadband service can vary by provider, location and type of connection. If you are having regular problems with your cable service, you may want to have a technician from the company check your equipment to make sure that there is nothing wrong. If you are dissatisfied with the company's service and want to change providers, there are a number of sites around the Web offering advice. Broadband Reports (www.broadbandreports.com) rates and reviews cable, D.S.L. and fiber optic Internet service from providers all over the country. The site also runs support and discussion forums and offers online tools for testing your connection. CNet's reviews section (reviews.cnet.com) compares popular broadband services as well and offers a Bandwidth Meter to test your connection speed. The ConsumerSearch site (www.consumersearch.com) compiles reviews and surveys of Internet broadband providers.