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What is the expected behavior when a scope is deactivated where there is a DHCP failover relationship
We have a site setup as follows: DHCP Server 1 Scope 1 - Failover configured in load balance mode with 50/50 split Scope 2 - Failover configured in load balance mode with 50/50 split DHCP Server 2 Scope 1 - Failover configured in load balance mode with…


Why IPAM doesn't show DHCP client's information ?
Hello, I've setup an IPAM server based on a DHCP/DNS serveur from which I get the scopes and records informations. When a client get an IP adresse from the DHCP, when IPAM refresh the data, it shows the IP but nothing else : No information about the…
SendARP WinCE 5.0 VS WEC2013
Hi all, I just discovered that the SendARP function is different between WinCE 5.0 and WEC2013. In the first one the message is sent over the network only if the IP address isn’t in the ARP table instead in WEC2013 the request is always sent.…


How to identify why DHCPv6 server sends NoAddrAvailable to Windows DHCPv6 Solicit?
Hello, Our Cisco Network Registrar (DHCPv6 server) responds to DHCPv6 Solicit from Windows with Status code "NoAddrAvail", status string is "No address available on link". Other devices, having a bit different Solicit's, successfully…


How to configure MAC filtering using only first MAC digits
Dear Microsoft Community, I am a newbie when it comes to DHCP MAC filtering and I am wondering if there is an option ( either trough Powershell or by using a 3rd party option ) to filter MAC addreses using only the first digits of the mac. The idea is…
DNS resolution issues internal network to DirectAccess clients
Good afternoon, We are having some issues with resolving DirectAccess clients hostnames from the internal network. Laptops are moving from inside our network (IPv4 address handled by 2 DHCP servers / DNS / DC) to outside the office, using DirectAccess…


Windows 2019 RRAS Server unable to utilize DHCP server on same subnet to issue to RRAS clients
Hi, I've seen this occur twice already when setting up new Windows 2019 servers. Most recently, I introduced a new Windows 2019 to replace an older Windows 2008 R2 server as our RRAS server. Simple setup, with single domain, single subnet, one domain…


DHCPv6-Relay-Agent does not receive requests
Hello, I have 2 virtual (2016 Hyper-V) networks connected by a RRAS router VM (2019). The DHCPv6 server VM (2019) is in NET1 and the client VM (W10) is in NET2. On the router I've configured the RRAS DHCPv6-Relay-Agent and activated router advertisements…


DNS Conditional Forwarder stops working as soon as it's Domain Replicated
Hi All, I have a very strange situation in which when I create a Conditional Forwarder on a DC, it works great, but only if its a standalone forwarder on that 1 DC. If i then domain replicate it, it no longer works, EVEN on that original DC.... I…


Does DHCP DNS Dynamic update registration credentials support the use of GMSA on Windows Server 2016?
I am trying to find an automated method for all of our service accounts within the domain. One account is the DHCP service account used for dynamic registrataion of objects. I would like to convert this to a Group Managed Service Account so the password…


DHCP Migration from windows server 2012R2 to windows server 2022
Hi, In my organization we are planning to migrate DHCP servers from windows server 2012R2 to 2022. In few domains DHCP server configured HA and few domains only one DHCP server. Could you please assist the best way and steps to migrate DHCP servers from…


DHCP server Migration from 2008 R2 to 2019
Hello, I am preparing to migrate DHCP server from Windows 2008 R2 to 2019 would like if i can do the migration in working hours and what it effects on the client machine receiving IP from DHCP server. Please guide me the safest method for migrating…


How to conigure 161 DHCP Option for multiple server using powershell
I have to run the below command on multiple DHCP servers, let say DHCP01, DHCP02, DHCP03, DHCP04. Below command is fine, I have run it one few servers one by one and it works good. But, I need to specify on all servers in one time so I need to configure…
SRV Records listing old DC in ACL
Hello. I finally replaced my 2012 DCs with 2019. One of the 2012 DCs was a VM. I'm seeing this VM's account listed in the ACL of many SRV records. These are the records in DNS-Forward Lookup Zones-[our doman name]... in the _tcp and _udp folders. How…


The local domain controller could not connect with the following domain controller hosting the following directory partition to resolve distinguished names.
I am trying to setup a Active Directory and cant seem to find the solution on my own. The network also has a firewall, but I dont think that is the issue since the domain controller and AD are on the same machine. The local domain controller could not…


Error 20016 Exporting Dhcp Server & Scopes
When exporting Dhcp settings/scopes I'm getting an error on a single server. I can't figure out what the issue is behind the error. There are two IP's that cause the errors below and each is in a different scope on the server. Any suggestions would be…


SRV Records Keep Appearing For Demoted Domain Controller
I accidentally spun up two domain controllers using a KMS key. We will call them DCA and DCB There are now vlmcs SRV records in my dns for these domain controllers. Neither of these servers ever had VAMT installed on them. I got to looking at my dns…


Standalone dns migration from windows server 2012R2 to server 2022
Hi, In my organization we are planning to migrate standalone DNS server from windows server 2012R2 to server 2022. We are planning migrate to different domain with new computer name of targated server. While transferring the zones or through…


The DHCP pool is smaller than the issued range.
hello everyone! Windows Server 2019 Domain Controller and DHCP I recently encountered such a situation - it was necessary to exclude the first 7 ip addresses in the pool from leasing. But as it turned out, the range settings exceed the specified pool for…


Server 2022 pagefile sizing
Good afternoon, all! I have a 2022 virtual server that will be running DHCP chores for two scopes. The server is currently waiting for migrations and is essentially idle. I've been getting monitoring notices occasionally - The value '92.83' was detected…

