Host is already connected to this vCenter Server

Hello,

I've changed esxi server (phisical) and whant to add this server to vCenter. I would like to use same name? but i cannot do this. when i'm trying to add new server i cannot do this.

error message is: The host XXX is already connected to YYY vCenter Server.

In vCenter Server Database in ENTITY table i don't see this hostname... (i thought may be old server was not removed correctly and some thing should be in DB). But any way i think thomthing left in DB and i don't know how to clean DB...

May be somebode had this problem...

Thanks in advance