How to use SSO token creation with mutliple login-server

[javix]

I have follow problem.

I have multiple Login-Server on multiple windows machines (load balancing)
Here is the login process:
STEP 1: The client generates the clientToken and send it to the Login-Server.
STEP2: Login-Server generates the serverToken and send it back to the client.
STEP 3: The client generates the new client token and send it to the Login-Server again.
During STEP 3 it is possible, that the Login-Request will be handled by other Login-Server that does not have the client token from STEP 1. The Login-Request will be rejected in dependence of which Login-Server process the Login-Request .

I tried to persist the first client token in DB and read it by STEP 3. But it does not work correct. In this case the user is always 'ANONYMOUS'.
Can your help me?

[hazendaz]

@armagedon Can you go ask this same question on the user group? You can find it here