Brand new unit. Followed the instructions, using a hard wire. I was able to set up the unit. Created the log in password. After seeing the "congratulations, you're connected to the internet, I logged out, then back in, to make sure everything was okay. It was. Then, I made changes to the unit. I gave it a different IP address (192.168.0.2). Saved it. Still fine.
Then, I disabled the DHCP because I am using this as an extender in my home network. Saved that. Logged out, then back in (successfully).
Powered down the router. Moved it to the location, and connected cat5 to one of the 4 ports (not the WAN). Powered it up. I see the power light, the wireless signal (steady) and the hard wire connection lit up.
However, on my computer, I open a browser, type in the IP address, and it will not open. It times out. Restart the computer, open a browser, repeat the process. Nothing has changed. I tried pinging the router through the cmd prompt, and it didn't find it.
I have two other routers (not TP) that I can type in the IP address and they open instantly.
That's the extent of my meager knowledge. I'm stumped.