We agreed to play Heroes of Might and Magic III online! (July 2010 - December 2013)

Hello everyone! I'm also ready to play! However, I have a problem with Gameranger, and maybe not just with it. Today, I tried to play with my brother over the network, but it didn't work. I create a game in GameRanger, he joins, we go in, choose a map, resources, everything. Then I click "start," and that's where the problem arises. At first, everything loads, but the data sending freezes at 98% for the creator, and at around 15-25% for the person who joined. We both have Heroes 3 Platinum Edition, V4.0. Identical versions from the same distribution. I've searched the entire internet and found nothing. Then I contacted a gamer from Finland directly in the program; he created a game, and I joined – everything was fine. We haven't tried it the other way around. Maybe someone can suggest what the problem is? Could it be something wrong with the game, or something else? I'm in Dubai, and he's in Russia. Please help! Thank you in advance!