please check vrmd process status.There is a solution,for detail , see
1.Check the system log, portal, and vrmd status. The Fusion Cumputer is running properly.

2. Check the port number status.
The 7443 8080 8443 port of the main port of the FC portal is not released, and no process ID is displayed.
3. Run lsof -i:7443 . The command output shows that the 172.16.200.83:57783 frequently connects to the FC portal address. As a result, other IP addresses cannot be connected to the FC portal.
4. Restart the FC portal to release the port.