Matchmaker 22.214.171.124 introduces a new way for networking Populous. Instead of relying on the aging network code of Populous designed for 90s style Internet connections, Populous now relays all traffic through the matchmaker. This allows the matchmaker to control essentially every aspect of networking meaning easier host setup with fewer firewall rules and a lot less unexplained connection problems.
Issues are still being worked out, so if you try to host a game and it gives an error or doesnt work, contact IncaWarrior for instructions on sending some logs so it can be worked out. Apart from the hosting/network improvements, this solution also opens the doors for a number of other interesting features, so stay tuned!