Thank you for your post.
Although I am unable to replicate the issue, I'll need some more details.
Are you connecting via WebDirect using http or https? If https, what SSL certificate are you using?
What browser are you using? What version of the browser? Do you get the same result when using a different browser?
The current version of FileMaker Server is 14.0.3. The update can be downloaded through Knowledge Base Article #15247:
Let me know what else I can do to replicate the constant refreshing issue.