Game hangs up when using wi-fi

Ring

Over the past several weeks I've noticed that when I'm playing at home using my wifi, every once in a while, usually when switching between screens, like going from Battles to the general cantina view, the game will hang up. The loading circle (the one looking like a terminal socket) will just go round and round at a uniform pace and nothing happens. I have to turn off the wifi connection and switch to data transfer in order for the game to unfreeze. First a "there is a problem with your connection" window pops up, then the game goes back to normal. If I switch wifi back on, it works for a bit and then the problem appears again.

Anyone having a similar issue?