Tatamy , 18085

None, really. If you have a whole bunch of computers, you can add then to your home network using a switch, which is both cheaper and faster than a router.

Also, having two routers creates configuration issues, and makes it harder to communicate between computers/other devices in the home.

Now, if you are trying to create two separate groups of computers, say 'personal' and 'work', then it's possible that it might be useful, but even here it is usually not necessary, as there are simpler ways of handling security issues.

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