I can only connect my Epson WF-3620 Printer to my Pepwave Surf SOHO MK3 by rebooting the SOHO. After the reboot I can connect the printer and it remains connected until I turn the printer off. When I turn the printer back on I get a MAC filtering Check Fail. I then reboot the SOHO and can again reconnect.
Current firmware version: 7.1.2
Security: WPA/WPA2 -Personal