I have configured ACI with VMM and UCS Integration. Till yesterday everything was working fine, but since today (I couldn't find out was was changed) I have trouble with my UCSM Integration. Since today only a few NIC profiles are still associated with the VMM Domains. Some NIC profiles which had been associated till yesterday lost there association, and all vlans which had been pushed down to UCS vNIC Template have been deleted. As workaround I have configured the VLANs manually on UCS vNIC Templates, but I try to get the NIC Profile VMM Association up and running again. NICs vom UCS are sill connected correctly to the dVS in VMware, and even if I delete the VMM Domain from one EPG and reconfigure it, the Association still doesn't be created. Is there a way to manually configure the NIC profile VMM Domain Association? I have configured one Integration Group with two UCS Managers (2 UCS Domains with 2 FIs). Both UCS Managers are configured as associated switch managers in the VMM Domains. Deleteing the association and re-add them doesn't solve the problem.