Vista - WLM random logoff's

Hi all,
For the last couple of months I've been dealing with constant random logoff's of my WLM.
Being an IT tech myself, I took a look at the connection log and just recently marked down the following lines as the cause to the issue (socket numbers vary):

[16:48:44.07] Zone_HotmailProtocol CMNSConnection::OnPNGTimer@03A07070: PNG timer fired for 1th time
[16:48:44.07] Zone_Net CTCPNetworkLayer::Send (03A07C58) >> sent 5 bytes on socket 2708
[16:48:44.07] Zone_HotmailProtocol CMNSConnection::SendNetMsg@03A07070: Sent >PNG<
[16:48:59.08] Zone_HotmailProtocol CMNSConnection::OnPNGTimer@03A07070: PNG timer fired for 1th time
[16:48:59.08] Zone_Net CTCPNetworkLayer::Send (03A07C58) >> sent 5 bytes on socket 2708
[16:48:59.08] Zone_HotmailProtocol CMNSConnection::SendNetMsg@03A07070: Sent >PNG<
[16:49:14.08] Zone_HotmailProtocol CMNSConnection::OnPNGTimer@03A07070: PNG timer fired for 1th time
[16:49:14.08] Zone_Net CTCPNetworkLayer::Send (03A07C58) >> sent 5 bytes on socket 2708
[16:49:14.08] Zone_HotmailProtocol CMNSConnection::SendNetMsg@03A07070: Sent >PNG<
[16:49:16.13] Zone_Net CTCPNetworkLayer::OnMessage (03A07C58) (2) >> Got WM_WSASELECT_MESSAGE(1055) from WSAAsyncSelect for socket = 2708, error = 10053, event = FD_CLOSE
[16:49:16.13] Zone_Net CTCPNetworkLayer::OnError (03A07C58) (2) >> called with 0x80072745
[16:49:16.13] Zone_Net CTCPNetworkLayer::OnSocketClose (03A07C58) (2) closing socket 2708

Basically as I understand it, PNG commands from the server are being sent, and replied to by the client with QNG commands. usually my client responds just fine, but as you can see sometimes it fails responding and the socket gets closed down, which immediately turns on the log off process and disconnects my WLM.
I've been in contact with the MS WLM escalation team but until now with no success.

I'm really hoping you guys could help me identify and resolve this issue.

EDIT:
Some more info on things I tried:
Disabled firewall, disabled a/v, disabled non-ms services, port forwarding, WLM 9 beta.

Does this still occur after upgrading to the latest beta version of WL
Messenger client?

http://download.live.com/messenger

- Jeroen

"c0rnflex" <guest@xxxxxx-email.com> wrote in message
news:b4791450ef4903196ddb7b49c105d030@xxxxxx-gateway.com...

Yes.

I carried on reading about the MSN protocol, and figured PNG is actually sent from the client to the server, who then acknowledges it with QNG.
This happens in NAT configurations in order to keep the socket alive even if idle.
Basically what's happening to me is, that sometimes, the PNG commands aren't answered by the WLM server and the socket gets closed - which in order shuts down my connection to WLM and logs me off.

Reference: http://www.ezonate.co.uk/messenger/MSNP15:Pings

Now I need someone to tell me how I fix this annoying issue :/

Mmm, why recommend a beta with lots of bugs still in it? Bit weird I think?

hey, not sure if you arre still checking on this thread or not, but i have
been having the same issues with beta. Also, when i went to remove the beta
from my computer sothat i could download the old version, it will not let me
uninstall. whenever i check the box, the option to hit ok is removed. Have
you noticed this? -Metpirate

"c0rnflex" wrote:

Hi,
Nope, I have removed the beta and installed the older version just fine, but the problem still exists.

Meanwhile I have been able to overcome it (but not fix it) by using a 3rd-party client which lets me connect to the MSN service through HTTP (no disconnections that way)