My Cloud Home cant use more than 5 users

There is small office,and we cant access to MyCloudHome more than 5 users at same time.Are there any settings to fix it?

@quantum1 See this from the Knowledge Base.

This was my first reply and from the above probably would not help you.
Have you checked your Router for number of users allowed. See example image below.

Have you visited the Learning Center and looked at the information there and the User Manual?