So I'm trying to play online, and once I find a server with decent lag it runs quite smoothly. That is until the end of that match. As soon as I get to the end of a match I'm presented with a flashing disconnect button on the lower right hand side of the screen and the game seems to freeze up. I end up having to minimize to desktop and end task the game. Obviously this isn't a great way to play online.

I'm running the DVD version patched to 1.1, although this same issue existed with 1.0. I'm running on an AMD 64 4000+ with 1GB Dual Channel RAM. The graphics are being genereted by an Asus X1800 XL PCI-E video card. Also I'm on a high speed cable internet connection.

I'm not sure if any other details would be relevant, but feel free to ask if I've left something out. Has anyone encountered this before and was able to find a corrective fix. It would be rather nice to be able to enjoy the online aspect of this game.

Thanks of any help, and triple thanks if it's the solution! :)

I had this happen a lot on BF1, but rarely on BF2.
Your computer specs are more than enough to run the game properly. If you're actually getting the lag indicator before it quits, as opposed to it simply crashing and going to desktop, then it might be a real connection problem.
Try different servers even with less than optimal ping. Does it still happen? Could be the server itself, the better the ping the more people it's likely to have, and more people equals more issues for the server. Try one with nobody on it too.
I assume your internet connection is fine otherwise, no other major issues....?
Oh yeah, at any time did you completely lose your internet connection after one of these freezes, and have to restart your modem or router?

Single player the game is flawless. On local LAN connections, or at least the last time I played that way it was also flawless. That in itself gives me an idea, I should try a local LAN game again and play through to see what happens.

It will occur on multiple servers. It has on less than a handful of rare occurances played normally online for me. Where at the end of the battle the stats screen will appear at let me continue on to the next map. However that is very rare.

To clarify: the game will never quit on its own. And in fact it isn't would I would classify as a typical crash. It will happen right at the end of the match with either Victory or Defeat. The connection icon will start flashing and I'll have but a few seconds to react and try make it to the game menu before it stops responding to input. Even if it does stop responding, any on screen graphics will continue to act normal. For example if I'm near a capture point, the symbol will keep twirling round and round. So I suppose its not really freeze crashing in the traditional sense. However if I don't act quickly and get to the quit menu to quit back to the main menu I'll end up having to minimize and End Task the game to get out of it.

I have never lost connectivity to the Internet during such an event. And in fact while the program is unresponsive and flashing the disconnect icon at me, the activity lights of my router and modem continue to flash as though I were still communicating perfectly fine with the server. It almost seems to me as though the packet(s) that says "Ok this map is done, move on to the stats screen and next map" don't make it to me. I have no idea if other players continue to see my name on the playerlist on the next map (or at least until I end up having to hit End Task).

How long have you waited for it to move on. Give it a good 30min at least once to see if the game recovers itself.

I'm getting the EXACT same thing happening to me. I have no idea why it does it and it is ruining my will to play SWBF2 anymore. It is so stupid! Somebody help!