Hi, we have the following Scenario: 2 DC in the same Site Both DCs are DHCP Server Both DCs are in the DNSUpdateProxy Group On Both DHCP Server we use Credential Delegeation for dynamic update Registration on the Ipv4 Tab. The Account (sa-dhcp) is only a Domain Member The Option 81 on the Ipv4 and on the Scope self is configured with DWORD value 23 We have on both DHCP Server set the OpenAclOnProxyUpdates to 0 On the DNS Zone domain.local, we have at the moment no scavenging enabled. The Zone are allowed to only secure updates We wont that the DHCP Server make alle the Dynamic Updates on the DNS Zone for the Clients and non Windows Device like Printer etc. We have the problem that the DHCP leases appear immediately but the dynamic dns records are written very delayed in the DNS Server. Is there a parameter to decrease the time in witch the DHCP Server update or create the dynamic DNS Records Thanks for any help. Regards Seven