You should go back to Epson and see how to setup wireless printing again. You must be missing some steps. Try this link --
Epson WorkForce Pro WF-C5790 | WorkForce Series | All-In-Ones | Printers | Support | Epson US
Also Install the Epson Scan software to scan. Don't use Windows Scan. That does not take advantage of all the features.
Hey mlg63, we do NOT want wireless printing here.
The rule in this shop is simple and if it isn't in yours, well that's your problem. But our is, if you can run a cat6 to it, it better not be choking the WiFi. We don't give a squat of the 'features' a product offers other than it meets our needs, Besides, there is NOTHING a wireless printer that a wired cannot do other than to operate where a wire is not possible. To assume WiFi has some magic is just plain nuts.
And, duh, I said I was using Epson SCAN because there was no choice. Read first before you comment!