It works well and I run a second router. You can either leave the second router as a router and yelp about sharing between LANs or google this:
How to use a router as a WAP.
Both ways work. But which you use depends on your goals.
Note: Edited for spelling.
I live in the sticks and have had to use dish "internet" for years...but they are finally putting in cable and internet (Spectrum) on my road.
I have 2 buildings and I would like cable and internet in both. I can connect them with CAT 6 cable (line of sight is tricky)
Can I put a wireless router in both buildings and run them off the same modem?