HCL Sametime 11.6 is supporting MongoDB 4.4 and this is the suggested version in case of new install. One of the suggested steps during a Community setup is enable the Mongo security as described here , but the steps there are not enough, because 4.4 version in case of replica set , require also the creation and the use of a shared key to every Mongo server involved in the replica set, even if the replica set is composed by 1 node.

During last weeks I'm working mostly on HCL Sametime preparing some meetings environments. After the release of the 11.6 we have noted the server wasn't able to start if installed after FP3 of Domino 11.0.1. The issue is similar to the Traveler issue , but we have fixed it in this way: