Your internet connection depends on multiple devices working together. Here are the details to help you troubleshoot problems and stay online.

A modem and router work in tandem to deliver you an internet connection and then grant access to your various devices.

Q I switched my Dell PC from Windows Vista to Windows XP in order to go from a dial-up Internet connection to a faster broadband connection from AT&T. Now I want to go back to dial-up access to save ...

I've got a Nokia N73 and somebody told me that I can use it as a modem for my laptop, but I'm not sure how to set this up. It would be really useful because I'm already on a flat-rate data plan and I ...

If a computer is unable to configure a valid Internet Protocol address, it can't connect to a network. If you plug a laptop directly into a modem with an Ethernet cable and receive a "No Valid IP ...

Amidst its ongoing legal battle with Apple, Qualcomm today stated that it expects the iPhone maker will not use any Qualcomm modems in its upcoming iPhones. While Qualcomm will still provide modems ...