a suggestion from LOL_SEEN.
Old Laptop into Pfsense router
https://www.google.co.uk/search?q=pfsense+old+laptop&source=lnms&tbm=vid
https://www.reddit.com/r/PFSENSE/
Radius with PFsense https://www.google.co.uk/search?q=pfsense+radius+authentication
This should work.
Or buy a router that supports a radius server.








