Playing this old game has never been a problem while my LAN was setup with an old DLINK WBR-2310. I recently switched to a powerful router, the ASUS RT-N66U. Everything goes well on the LAN. Windows PCs can see each other, I share a printer. I was able to play Minecraft on the LAN between several PCs. But when I came back to Age of Empires (which uses TCPIP DirectPlay for multiplayer) no PCs can see the game host. Sometimes, they see it in the list, try to join and then it hangs and fails. Some PCs are wired, others are non wired, so the problem is not specific to one category.I tried to switch the game host, not better.
I thought a router could be difficult to setup in its way to handle the communications with the outside, port forwarding, and so on. But on the LAN with all machines on the same address range...?
Any idea on what could be blocking? Thanks.