I've got an Epson WF-3540 printer. It is connected to our network wirelessly. It used to not give us any problems until I had to reset the router. Now the printer hardly ever works for us, because it always appears to be offline. I've no idea why. And what is contradictory is I can easily get to the printer's website by navigating to its IP address, so it can't be offline.
So why does it appear to be offline to every machine in our house when it never was before?