Quick fix: If you happen to 
inherit a previously used router, you most likely won't be able to 
connect it to your broadband connection and just start using it. The 
best way to set up a previously configured router is to reset it back to
 factory default (usually by pressing the reset button underneath or on 
the back of the router). You can then check the router manufacturer's 
website to find out the default IP address, username and password or 
download any available set up software to configure the router for your 
network.  Internet Connection Tips;  My friend gave me his router, but it doesn't work on my network.
Internet Connection Tips;  My friend gave me his router, but it doesn't work on my network.
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