Epson printer not connecting to Wifi due to MAC Address Filtering check

My Epson 2850 will not connect to wifi. It has previously been connected to wifi with the exact same set up/we've changed nothing, but all of a sudden it says it can't connect due to failing the MAC Address Filtering Check. Which I can't even find anywhere in the xfinity app/settings. We have the XB7 model - and that says in the gateway details that it has a MAC address - which I can put on here if needed but nowhere can I add the printer's MAC address. Yes I have turned the printer off on. Yes I have turned the modem/Gateway off and on. Yes I have turned them both off at the same time and turned on the modem and then turned on the printer. Yes I have uninstalled the printer from my computer and reinstalled it and tried to reconnect to the internet. It fails at the MAC address every single time. It printed a single document today that had been in the print queue, so I thought that maybe it had somehow fixed itself, but now its just giving me the error message again.  When I go to WIFI, Devices and click on my printer, it just shows it offline. When I did this after it printed the document this morning it showed it was connected and I tested the signal and it came back strong, but then nothing would print again... anyone have any solutions? It seems this is not an uncommon problem based on the search feature here.