Ticket #6401 (closed defect: duplicate)
FIN_WAIT2 Error in Host NAT Service
|Reported by:||semidark||Owned by:|
|Version:||VirtualBox 3.1.4||Keywords:||TIME_WAIT2 TCP Connection|
Since Version 3.1.2 I have a problem with the NAT Network service on my Windows XP Host and my Ubuntu Karmic Koala Linux Guest.
TCP IP Connections don't get closed correctly anymore and if many connections are kept open in FIN_WAIT2 status new connections even get interrupted. Typically this happens when I open a lot of websites at once in my Guest Webbrowser. Suddenly the Browser can't open Websites anymore.
# netstat -tuanp |grep FIN_WAIT2
on the guest gives awful lot of not correctly closed TCP Connections that only disappear when the Linux kernel kills them due to an timeout of 60 seconds.
It seams to be a problem on the Host Side since I tried multiple Linux Kernel releases that Karmic offered.
My host system is a fully patched Windows XP Professional SP3.
With VirtualBox 3.1.0 the problem doesn't occur. Even with the GuestAdditions 3.1.4 installed everything works just like a charm.
So updating to more current versions of virtualbox is currently impossible for me.
Thanks in advance
with kind regards Semidark