Celtic Alliance Clan » Forums

Dec 22, 2010

You'll need the Open Ports option for your router and remove any options from Port Forwarding.

Just so I can clarify, what are you trying to do or resolve?

Aug 07, 2009

When trying to connect to a multiplayer game in MTW2 it can't connect due to a "NAT Negotiation Failed"

Dec 22, 2010

Have you tried any of these suggestions?

Suggestions

Aug 07, 2009

Yea, don't have any P2P programs, no Hamatchi

Dec 22, 2010

Also, some anti-virus can cause issues. Try temporarily disabling it to see if it is blocking it.

Aug 07, 2009

Only have the stuff that comes with Windows, made no difference.

Dec 22, 2010

OK, let's see if your hardware-based firewall is blocking it or windows. Firstly, open the logs for your firewall by logging into it and going to Firewall/Packet Filtering Logs and posting the contents here.

Aug 07, 2009

From what I can see I need a separate program that came with the router to get logging and as it's not my house I'm staying in I dunno where it would be. Thanks for all the help so far though.

Dec 22, 2010

No worries, can you come on Teamspeak? It would be quicker than conversing through the forums. I'll talk you through enabling the windows firewall logs so we can see if it is windows blocking it.

Oct 03, 2009

I had the same problem with my mtw2 before too, the problem with me was that the virtual network that Hamachi had created on my PC was interrupting the communication between my normal connection so it wouldn't work. Have you checked for any other virtual networks you have?

Aug 07, 2009

What else could be creating a virtual network?

Aug 09, 2009

Just a heads up, i had the same issue and managed to fix it by enabling upnp on my router and forcing medieval 2 to use my private ip address

You can configure this in medieval2preference.cfg located in the root of the medieval 2 folder i.e (c:\program files\sega\medieval 2 total war)

there should lines in the config file as below

[network]
use_ip =
use_port = 27750

put your private ip in there (the one that you get when you type ipconfig in command line)

save the file and make it read only, as medieval2 will attempt to re-write this file when it loads.

Oct 03, 2009

bah, now i'm having problems. whenever i play a game with more than 2 people in it i connect fine to the lobby but when i finish loading it just hangs there and it says i have connection problems, i have uninstalled hamachi and i have no other virtual networks running on my machine, i've tried what everyone else suggested, i've resetted my router dozens of times, i just don't know what to do anymore, please help!!

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