The web-tier version must be the same as your Authentication Manager version. Make sure you check the web-tier version after you update Authentication Manager. You can find the web-tier version in the Operations Console or in the web-tier installation directory.
To see the web tier version, do one of the following:
In the Operations Console, click go to Deployment Configuration > Web-Tier Deployments > Manage Existing.
In the web-tier installation directory, go to webtierBootstrapper//
webtier.properties and look for webtier.version=<VERSION NUMBER>.