I followed the whole documentation, to the connection step, this page:
https://docs.microsoft.com/en-us/gaming/playfab/features/multiplayer/servers/server-sdks/unreal-gsdk/connect-to-mps-hosted-build
The MPSAllocatorSample retruns me an IPV4 and the port as expected, but when I try to connect i eventually get this log in a loop:
LogHandshake: SendChallengeResponse.Timestamp: 182.233322, Cookie: 173199201122247095192010194229066226062041221176215233172203
LogHandshake: Ignoring restart handshake request, while already restarted.
and eventually a timeout error.
(Obs: the localMultiplayerAgent returns me a "healthy" status when executed).