AkameMoe

In my opinion, I think the problem is caused by a UDP packet send or receive order error. If the resource/behavior package info packet is sent or received before the play status packet (or things like that), maybe it'll cause the problem. Just a simple guess 🙂

It seems I can get into by adding on all the resource and behavior packs, but after adding those packs, I still need to try again and again for luck

p.s. I also tried to reset internet, no help

I can see a flash of "Download resource pack" windows sometime, I got reports from other players that if you're lucky enough to click on the "Download" button, and downloaded successfully, you can join, otherwise you'll get the "Unable to connect to world " error again and again

@MandanaM 's solution seems not to work for me