I have a Brother MFC-L8360CDW for about a year now and lately it keeps disconnecting from the wifi network after a few minutes of printing. I always have to restart it manually. I've already tried changing the wifi channel and moving it closer to the router, but the problem persists. Does anyone know how to fix this?
Try disabling power saving mode in your printer's network settings, because Brother tends to shut off the wifi module after a few minutes to save battery (even when it's plugged in). Also check that the firmware is up to date from the Brother website - they often release patches specifically for wifi connection issues. If nothing works, do a complete reset of your printer's network settings and set it up from scratch, maybe this time skip WPS and enter the password manually instead.
Have you already checked if your printer's firmware is up to date? Because often wifi disconnection issues on Brother printers are linked to bugs that get fixed in newer versions.
What the others didn't mention is that the wifi module on the MFC-L8360CDW sometimes gets into a kind of instability loop when the initial connection is weak. It's not just the sleep mode - once the connection is established poorly, the printer keeps trying to reconnect every time it finishes a job. What works best is doing a "factory reset" of just the network settings (not the whole printer, just from the network menu) and then setting up the wifi from scratch with the printer literally right next to the router.
Also, check the printer's logs to see if there are authentication errors - access the printer's web panel (find the IP from the network menu) and look at the "Event Log" or "System Log" section. If you see messages like "authentication failed" repeating, the issue is that the wifi is asking for access every time, which means the credentials aren't being saved properly. In that case it helps to temporarily disable any MAC filtering on your router and redo the connection.
If the firmware is already updated and power saving is disabled, the problem is often that the Brother loses signal because the wifi module can't keep up with the printing speed 📠 - try completely resetting the printer's network (delete the wifi profile from settings, restart everything and reconnect from scratch), sometimes the old profile stays corrupted and causes random disconnections even when the signal is good.
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