Problems printing wirelessly

I have an Epson Stylus NX430 which I printed to without issue until last week. Last week, I changed offices, and now I can not print from Macbook Air to the printer. I've verified that both the printer and my laptop are on the same network as well as checked the wifi connection on the printer. When I ping the IP address, it comes back as "No route to host. Host is down". Others in my office are also unable to print to it. Any thoughts?