I received this - internal exception java.net.sockettimeoutexception read timed out, what should I do now?

I believe I had run into a similar issue once before - internal exception java.net.sockettimeoutexception read timed out

 From what I can recall, the issue was not with your server, rather it's an issue with authenticating with minecraft.net - even if you're connecting to localhost it still routes the username through that server.

What I did to resolve it for me in the meantime:

Stop the server if it's already running

Navigate to the folder where you have the server files

Open up server.properties

Find the line that says online-mode=true, change this to false

Save the file

Relaunch the server, see if it connects

Hope this helps!