how to update access token for EAuthTokenPlatformType.SteamClient?

[JVz]

When using EAuthTokenPlatformType.SteamClient I'm trying to call webLogOn to obtain new access token for already logged in account, but webSession event gives same steamLoginSecure cookie as before with different sessionid and clientsessionid;  and after around 24 hours it becomes invalid an webLogOn starts to throw 403 error

[Dr. McKay]

You would be expected to see the same access token/steamLoginSecure value if you attempt to refresh within 10 minutes of your last refresh, as steam-session caches it for 10 minutes. After that, you shouldn't see the same response to webLogOn() unless Steam truly returned the same access token again for some reason.