Minecraft java io exception?

I bought a new pc with win 10 and come into any online server more purely use the hexagon launcher

And this says after about 5 seconds join

Internal Exception: java.io.IOexception an existing connection was closed by the remotehost

Java upgrade currently and in the firewall also released desperate so slowly

Update Java

Did I already is currently says he has taken other launcher minimap out AntiVir times disabled brings nothing desperate here really