I got it to connect successfully. I found where I was supposed to get the right IP addressed and it worked right away.
Thanks for your help!

Ok, now I'm only showing the one network. My board's LED is constantly lit.
Now still having trouble connecting it to DWC.
I've been using http://duettest.local/ because I don't know how to tell what the IP address of my duet is or how to designate it.

No 255.255.255.255 is just what I daw in the serial tool. I guess I don't know what I'm looking at exactly.
I don't know how to manually set an IP address for the DUET board.
I'm trying to connect to BoogieDown. The LED on the board indicates that I was successful.

Here's the screenshot of what I get for the duet:

I've tried 255.255.255.255 and 192.168.1.14 and others.

My computer's wifi is 10.0.0.245.

Here's what happens when I try pinging the duet with 255.255.255.255 from the computer:

Here's what happens when I use 192.168.1.14:

@phaedrux Thanks! This guide is what I've been using. Everything is good until step 6. I put in the IP address that comes up at the end of step 5. and still get this:

I also followed the steps for the mDNS support as described in step 6. I get the same result.

Thanks so much for your reply. 3.2.2. That's the newest version I could get to work.
I don't actually see something that I can tell are DWC files in the www file. Is it supposed to be a folder?
I've figured out how to connect to my wifi network because the LED is constantly lit. I've tried numerous IP addresses from the setup instructions, and I've also tried designating my own.
This is my first go at Duet and working with IPs so I'm pretty sure it's user error but I've been at it for a while and haven't made progress.

Duet 2 Wifi with all current firmware.
Cannot get DWC to work despite network connection to board.
Continually get "This Site Can't Be Reached" message after entering the IP.
Any help appreciated!