bilbo opened the ticket and wrote:

While working on one patch of my own (reconnect console command) I noticed a flaw in the "connect" console command (ConNetworkConnect in console_cmds.cpp) - well, because I found out my patch suffered from the same flaw too :)

The "connect" command allows you to specify company you want to join, however, it uses IsValidCompanyID() function to validate the ID given as parameter. But this function not only validates that the company ID lies withing reasonable bounds (0..MAX_COMPANIES-1), it also tries to validate the ID by examining current company list. This is done before connecting to server, so this uses list from whatever game that is currently loaded (which mean you can join only first company on server using that command if you do it from the intro screen for example).

Reported version: trunk
Operating system: All

This issue was imported from FlySpray: https://bugs.openttd.org/task/2849