This is a bit of an awkward one to post step by step instructions.
There are some good guides as per admins post.
To separate wireless networks assuming you have a staff and guest network you'll need to setup your network to use vlans.
E.g. Vlan1 staff. Vlan2 guest
On your router easiest to have lan1 as staff - this will be linked to vlan1
Lan2 (different subnet with its own dg address) will be for your guests - vlan2. You would not enable routing between the vlans.
The port/s connecting to your switches leading to the aps would have access to both vlans.
The above is the principal behind it.
You would need to ensure all switches between your router and access points support vlans otherwise this will fail.
If you haven't done so already, do a drawing of the data flow (colours help). It will help you identify configuration and problem points.
Cheers
Adam
