Hello, i have a problem that happened me again, portforwarding not working, minecraft tells me io.netty.channel.abstractchannel$annotatedconnectexception no further information,

if i open a port, and i check it on portforward tester it is saying close no matter what port i open, i had this problem a while ago but i don`t know how i did solved it.If i change the router with an older router it is the same.

I restarted router

I turned off windows firewall and router firewall

i turned on dmz and upnp

what i can do more ? tell me