Sue A. Davis
A few weeks ago, I was dealing with the printer is offline brother problem due to the firewall system.
once I turn off the antivirus, and windows firewall. I was able to print successfully.
also, Some times, you can have brother printer keeps going offline problem due to the poor network connectivity. So you should install your brother printer near the wifi router.
for brief explains, you may visit how to fix brother printer won’t print? this topic covers advanced tips to fix the brother printer.