Dears, hello!

Internet from Mobile (Galaxy S8), laptop Lenovo x131e on i3 processor / W10
Cannot play on BN, can only chat. There is message that my internet connection is poor or I have blocked UDP 6112 port. Just change rules in the W10 firewall and still no chances to play. Also firewall (nod32) also turned off :/

Any ideas how to solve the problem?

Hi,
you can try the port forwarding advice mentioned in this thread
https://www.gog.com/forum/diablo/trouble_getting_battlenet_working
But if it doesn't help, you might be stuck to LAN and Singleplayer, just like me.

funny but one time the message was gone even though i did not portforward on router. was able to create a game but did not see anyone online.

I tried again later and it worked again. I didn't do any port forwarding or anything, just relogged both times. I was able to see other games & chat with other people when I did it.

same issue here, it worked earlier now it says to open 6112 port but im pretty sure it will come back quickly.. it's prob down atm