[rplst8]

I've had the same thing happen with my Epson WF-3540. It's been a totally solid printer up until this point.

To fix it I started it up and immediately disabled the Wi-Fi. Then I "suspended" Google Cloud Print and Epson Connect Services. It's working fine now - albeit with no cloud services for our phones/tablets.

Hopefully they resolve this soon.

[Veratyr]

In my case (WF-7610) I couldn't even get it to boot so I had to power down my wifi router entirely but the rest of the workaround worked.

[rplst8]

P.S. looks like they fixed it. I have Google Cloud Print re-enabled and it's working fine.