Problems with your Internet connection have several potential causes, including
Incorrect hardware configuration
Incorrect TCP/IP configuration
Incorrect ICS configuration
Incorrect ICF usage or configuration
Use this section to get your connection working again.
→ For additional troubleshooting tips and tools, see Chapter 21, “Troubleshooting Your Network,” p. 851.
Hardware failures can affect network adapters, cables, dial-up and broadband modems, routers, firewall appliances and entire systems. Fortunately, hardware failures are rare and can be detected if you know what to look for.
To detect failures with network adapters, cables, broadband modems, routers, ...