Travel / Wifi in Poland [6]

Most casual restaurants, pubs, coffee shops, train stations, malls have free WiFi. I was in Wroclaw, Warsaw, Czestochowa, Gdansk, Krakow, it's all good.
I also recommend you check out:

placestowork.net
nomadlist.com/search/poland

I recommend you get a VPN service if your work includes important data transfers.