I hope this is the right section. I think it's a problem with the wifi on one of two PCs.
I have an old XP PC, a new Win 10 PC, and an Epson Workforce 845 printer connected over our LAN. A few weeks ago, a Comcast tech came out and replaced our old cable modem and wifi router with a new Comcast modem & wireless router combo. Everything has been working fine until this morning. Both PCs, the printer, and the cable modem.router are in the same room.
I can print to and scan from the 845 using the XP machine and have for years. Yesterday, I was able to print to the 845 from the Win 10 machine. Today, I can't. It says the printer is offline. But it is not offline from the XP machine. But I can access the Internet from the Win 10 machine.
So, I know the printer and its wifi connection is working because I can prin t to it from the XP machine. And I know the wifi is working on the Win 10 machine because I can access the Internet and Outlook can send and receive email.
I have rebooted both the printer and the Win 10 machine.
Any suggestions as to what is wrong and what I should do to fix it?