Can it run OPENWRT or others noted at https://en.wikipedia.org/wiki/List_of_router_firmware_projects
This may give that router the needed Guest or "Client Isolation" feature.
As to the printer, let's just forget that since it's not easy and some find it intrusive the amount of detail I would need.
There is a slight issue with your existing network. If your router has the usual push button to connect, then what's stopping them from using that?
That is, IF I were to use that, are your network shares open to use without an account and password? If so, you have work to do there.
I have a network set up in my home through my fios actiontec router (192.168.1.1). fairly straight forward. I have a bunch of computers, tablets, ip cameras, printers etc that all work fine. Many of our computers share files. I would like to create a separate network to allow babysitters, friends etc to be able to access the internet, but not allow them access to all my other devices. Unfortunately the router does not have the guest network feature like the new gateway routers. I have an extra wifi router laying around. Can anyone layout the basic set up for this? I assume just plug it in and set it to 192.168.2.1 and create a unique wifi network? I've googled this and found a ton of conflicting information on gateways and subnet masks and am totally confused.
In a PERFECT scenario those on the guest network would be able to access one of my network printers (which has a static ip). Is this possible if the guest router is plugged into the main router? Maybe with some fancy port forwarding? Not super important but would be nice.
If anyone has some very clear and easy to follow advice I'd be very appreciative!!