help java.net.socketexception:connection reset by peer:connect

[noel honor]

would you please help me

i have a problem in my vnc viewer
the error after log in vnc viewer is

java.net.socketexception:connection reset by peer:connect

i already configured my router the NAT and even the ip filter is the security is none

i configure first the NAT and IP filter after it i submit the ip filter after it commit and rebot

my router is H9200P 

thanks a lot for help...