My installation of Vcenter 6.7 gets stuck at 60%. Below is the error I get:

503 Service Unavailable (Failed to connect to endpoint: [N7Vmacore4Http20NamedPipeServiceSpecE:0x00007fac1003efd0] _serverNamespace = / action = Allow _pipeName =/var/run/vmware/vpxd-webserver-pipe)