BIG-IP LTM version 13

Hello,

I've installed an virtual F5 LTM cluster version 13.1.0.2. When I tried to show statistics -> dashboard a new browser window opened. From this window a popup opened with the following text: "Unrecoverable Communications Error Please close this window and log in via the BIG-IP Configuration Utility" I've tested this from IE 8 Firefox 52.0.1 no difference. Box certificates are self-signed.

Any idea ?