Yes, if you really want to. If you just want wireless access points, buy wireless access points. The only reason to use hubs is if you have a spare one lying around therefore nil cost involved. If you are buying equipment, buy the right thing rather than bodge something together.
Thank you - clearly written. Worked first time for me (using hub 3 as secondary to hub 6).
Really helpful, thank you. Just one question - I've recently followed these instructions again for setting up my new Hub 6 and using my old Hub 5 as the extender, but despite being connected without any issues the orange broadband light continues to flash on the Hub 5. Have a missed something in the setup or is this just a feature of the Hub 5 which can't be turned off when used this way?
@mcoombsuk. It's a 'feature', I'm afraid. You could try covering the light up. The alternative is to use something that does wireless access point properly (I use an old Asus router) and doesn't flash.