MiSTer kills my WiFi network

[DiacloneFX]

WiFi works very well for my MiSTer.
Though sometimes something weird happens: when my MiSTer is using the WiFi network, like updating cores or transferring files through FTP, my WiFi network dies. The MiSTer stops loading, and my PCs on the same network lose connectivity. Connections are still active, but transfer speeds plummets for all my devices connected to the network. Turning the MiSTer off takes the network back to normal.
I use an Edimax EW-7811Un N150 Wireless USB Adapter Nano WiFi dongle, but I get the same behaviour with the TP-Link AC600.
What could be the reason and is there a fix?

[thorr]

It might the wifi channel your router is using. You could try changing the channel and see if the problem goes away. Also, see if there is a firmware update for your router.

[DiacloneFX]

I switched the channel from automatic to manual, and that seemed to do the trick, I haven't had any disconnection after that.
Thank you for the help!