So, I started Friday with this bit of reading...FBI recommends that you
keep your IoT devices on a separate network https://flip.it/oNLAtK and
thought I would see if my dd-wrt router (ASUS RT_N16) would do this. I then
noticed that the firmware was over 2 years old, so I thought, I should
upgrade the firmware. Long story short, I may have bricked my router.

In trying to get a connection to the newly non-functioning router, I am
having some networking questions/issues with my Ubuntu 18.04 laptop from
System 76.

My question is, can I run the wifi on on domain (192.168.25.x) and my wired
connection on another domain (192.168.1.x)? I can't seem to get any
response from the router after resetting it, which means it should be
available on 192.168.1.1, but I am not sure if it is a router issue or a
networking setup issue. I need the wifi on 192.168.25.x so I can peruse the
web to try to fix my router.

Thanks!

Mark