You said "if" and that's where Dish stops. *If* everything is configured properly with the user's router even then, the most troubleshooting Dish will do is "try a different ethernet cable", "make sure it's plugging in properly" and "let's reset the connection" on the Dish receiver. If none of those work, you're SOL.That makes very little sense. They build in Ethernet ports, so if the user has a properly functioning router...
Now, switch it to wireless.... Is the signal strong enough ? What encryption is being used ? What's the password or passphrase ? Remember, there's a reason most wireless networks in people's homes use "Linksys" or "default" as the SSID and they have *no* security in place !