I am in a sticky situation...
I've used up all the ethernet ports on my main HH3 (the one connected to the Openreach modem), now that more devices are entering my household and WiFi is pretty unreliable due to all the interferances around us, we all like to use ethernet. I currently have a spare HH3 laying around (Type A I believe) and was wondering if it was possible to use this HH as a ethernet switch. Sometime I did look into this and found a useful guide on how to do this, but when I connected my Xbox to the 2nd HH, my NAT was strict and gave up. Now that time has passed, I am hoping that someone with a bit more technical knowledge than myself can help me with this situation as the fight for ethernet ports in my house is becomming a bit of a nuisance (please do not judge )
It will repay its cost in less than a year with the electricity you will save by not running two hubs, assuming it uses less electricity of course.
EDIT: and of course you will get more usable ports.
I had a similar problem and so I have run a Cat5 cable from one of the ports upstairs and then used Keith's instruction web page to link 2 hubs togther.
This has given me a wireless repeater and 3 more ports at the same time.