Chapter 5. Troubleshooting Routers
Now that you have a basic understanding of how to configure a router and how various network types work, let's consider the most common router problems. These can be boiled down into two groups:
Router crashes
Network failure or slowness
By following a few straightforward steps, you'll have a reasonable chance of fixing many of these problems. In the worst case, you can at least be well armed with diagnostic information when you call your ISP.
Router Crashes
For the most part, Cisco routers keep working. On rare occasions, an untouched router will intermittently reboot itself, or just shut itself off for no apparent ...
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