Q: I have a one-year-old Lenovo IdeaPad L340. I am using an Ethernet connection to access the internet, and about one month ago it would download at 500 to 600 Mbps; now it downloads about 90 Mbps.

Losing the ability to download files from the Internet could potentially have a major impact on your productivity, leaving you unable to access important Web pages and other resources. Causes can ...