Whenever I host, I see an error message: port xyzxy closed, attempting to find UPnP devices.
After that, i press ok, or x.
Then i got this message: Binding failed.

I tried to port foward, but it didn't help...
I tried to hos with UPnP turned on, and turned off...
Can anyone help me?

also sorry for bad english

This also happens to me. Wondering how to fix it.