Hi,
I am not sure exactly where you are but assuming you cannot find you 325 on your computer (windows), try rebooting the router and see if anything shows up. I am assuming your computer and 325 are connected to the same router via ethernet. Make sure you have a networking enabled on your computer.
Other things to try, a hard reset to the 325. Log into your router and see if the 325 is recognized there and copy the ip to see if you can log into the setup that way.
You get better responses when you put more info about your computer, router, connections etc. Good luck