Help weird issue with google cloud and tibia 12

Hello

guys i got a server tibia 12 running and working on my windows pc (localhost). with no problems

but also, i got a google cloud vm and server works , website load, client load, charlist too . but i can't access to the game. im using clean znote 1.5 and clean server.. i just get stuck at "connecting to the gameworld.please wait"

could you englighten me pls?