Port multiplayer

System Information

Operating System: windows 10 Pro x64 bit
CPU: Intel® Core™ i3-4030U CPU @ 1.90GHz (4 CPUs), ~1.9GHz
GPU: Intel® HD Graphics Family
Citra Version (found in title bar): e51a642
Game: Kaku-san-sei-million-arthur
Screenshot of Issue (include the full Citra window including titlebar):

how to fix that ? sorry my english grammar bad

This is an issue on server side. You can’t fix it. Contact the host and let him know about this.

I usually get this the first time I try connect to a server but it works when I try again.