Error "Unable to connect to all players"?

This error is displayed by FS2004 when trying to connect to a session. Usually it happens when someone else that's already in the session is using a router and hasn't forwarded the correct ports. When your FS2004 tries to join, it gets a list of all the players currently in the session and tries to connect to them. But when it tries to connect to the player with the bad router, it isn't able to communicate with it, so FS2004 aborts the connection. Unfortunately there's not an easy way of figuring out which player is causing the problem, but if you ask everyone if they're using a router, and one of them says they are, and doesn't know about port forwarding, it's a good chance it's him

The person using the router needs to configure it so that certain ports are forwarded to the machine running FS2004. Typically the port is UDP 23456, but you should ask the person hosting the session if they're using the default hosting ports, or something different.

If you have a router and do not know how to forward ports, please reply here with the name/model of your router. I will try my best to help you with those.

Naresh

I found this web site to be very helpful when you need to forward some ports in your router: www.portforward.com/default.htm

It has detailed information for just about any firewall router sold. I found detailed instructions for my firewall router on how to to forward ports for Microsoft Flight Simulator 2004.

:scholar: By default, the firewall blocks all unwanted access from the Internet. You can allow access from the Internet to applications running on computers inside your secure home network by enabling firewall pinholes. Opening firewall pinholes is also known as opening firewall ports or firewall port forwarding. To do this, associate the desired application with the desired computer. If you cannot find a listing for your application, you can create a user-defined application profile. (To create a user-defined profile, you will need to know protocol and port information.)

For example, here is how I set up my firewall router to allow port forwarding:

1. Device=Dell8100, Allowed Application=FlightSim20041, Protocol=UDP, Port Numbers=6073.

2. Device=Dell8100, Allowed Application=FlightSim20042, Protocol=UDP, Port Numbers= 23430-23456.

:drunk: If you do not make these changes to your firewall router, then everyone who tries to connect after you do will be blocked from access. This means that they cannot join.

Another thing you will need to do is add an entry to your firewall software to trust Microsoft Flight Simulator 2004. You may have to create this manually if you cannot find it in a trusted application list. You just need to tell your firewall software where to find FS9.exe on your PC. Then, change your firewall software settings so that FS9.exe is a trusted application.

:lolsign: If you cannot do all this, then your only option is to disable your firewall software while running FS9.

If you need help setting this up, just contact This email address is being protected from spambots. You need JavaScript enabled to view it. or myself at This email address is being protected from spambots. You need JavaScript enabled to view it..