mistake's

After i didn't do my exam because of the misplanning i had another issue when installing the new environment. Yea having a great day :D

After installing the new host's i connected the second nic to the service console. Because of this i lost my connection to the host.

Login to the console(local physical machine).

List the nics that are in use by the service console
esxcfg-vswitch -l to list the nic's
Specify the nic you wan't to remove.

esxcfg-vswitch --unlink=vmnic0 vSwitch0
After this vmnic0 is removed from the vswitch and you can connect again to the host with the vi client.

Maybe there is a quicker solution but this worked for me.