Do you have a firewall enabled?
If so, enable emergency 4 to have inbound and outbound connections allowed by your firewall.
For Norton (2007):
1. Open the protection center and go to tab "Norton internet security."
2. Go to/click personal firewall and click configure.
3. When the window opens, click on program control and wait for it to load
4. Find your program and on the drop down menu click allow.
If your program is not their, click add and follow the on-screen instructions
The above should be similar if not the same on most firewalls.
Do you have a router?
If you have a router, you need to have DMZ setup. This is how to do it (for SMC routers but works for most routers (ip address could be different for some routers)):
If this doesn't work for your router then refer to your router's help manual.
- Open your web browser, type in the router's IP address (standard: 'http://192.168.2.1') and press enter.
- Click on Login, Advanced Setup, Firewall, enable it and click on apply.
- Click on DMZ and select Yes to enable DMZ.
- Enter the IP address of the machine, which was assigned a static ip address to be kept under DMZ, and click on apply.
Have you modified part of the modification or data files?
If you modify anything to do with the vehicles (i.e. change the units.xml file or editing them in the editor), the multiplayer map or anything to do with the multiplayer map (paths, etc) then you will not be able to host as people wanting to join your group will get: "Error: Different files to host." And I also believe if you try to join a game with modified files you will get the same error. To sort this out just reinstall the mod or the game. Remember: YOU SHOULD NEVER CHANGE FILES IN THE DATA FOLDER.
Does your multiplayer game seem too laggy?
What I mean by this is things in multiplayer do not seem to be happening right (i.e your units might be moving into other cars when you move them or the game seems generally slow), their are ways to reduce the lag:
1. Keep all unnesscessary programs and process outside the game to a minimum.
2. Join a server with the lowest latency
3. Use LogMeIn Hamachi - a free program to connect each other for gaming. Follow the tutorials. When playing the game make a "private server" and get people to join using direct ip and get players to type in your Hamachi IP rather than your regular one.
Download the program from here: https://secure.logme...amachi/list.asp
Online tutorials are available here: https://secure.logmein.com/products/hamachi/howitworks.asp
Hope this helps.
If I have missed anything please let me know.
If there is any other problems you have please do not be afraid to ask, and remeber to upload the logfile from the Emergency 4 folder.
Regards
James