Problems with Domain controller after promotions. How to fix 5721 event ID
Hi, Yesterday I promoted new DC in our domain in our one of remote site. This is migration to Windows Server 2019 so there are other DCs (about 20 on Windows 2016 and 2019). It was re-IPed and renamed. Before promotion I demoted old DC in that site. …
DHCP Failover: Configure failover failed error 20103 conflict in types for the same option on host and added dhcp server
I am trying to set up a DHCP Failover on my network with 2 Domain Controllers. The Main is a Microsoft server 2022 and the second one is a Microsoft server 2016. Not sure if that matters. They both have Static IP's within the same Subnet But when I was…
DNS IP Priority when a server has two IP’s.
Scenario: We had a Domain Controller that was setup with only one IP (172.16.10.10), we are decommissioning that server and moving that IP to a new DC, we have setup that DC so it has two IPs assigned to it. We have one IP we use for the Server…
DNS FLZ Subdomain _msdcs Unknown
I currently have no DNS issues that i know of, but looking through my DNS foward lookup zones i found that the domain controllers listed under _msdcs are from older domain controllers that now do not exist. All of which list as IP Address Unknown. If i…
Cannot access computer shared drive using IP by can use computer name.
I rebooted my workstation computer only to find that my mapped drive is disconnected. I try to reconnect using the "shared" computers IP address (\10.2.203.110\Shared) but it will not connect. So while waiting for my workstation I went to…
Configuring a central DHCP server
Hello. I want to set up a central DHCP server for different locations. Currently, each location has its own DHCP server. For security, there is to be a second server in another location and both tied together by Failover. Just setting up the server and…
Migrate DHCP server from 2012 Standard to 2019
I have another thread regarding his migration here. It was thought I should ask this in a separate thread. Basically I will need to migrate the DHCP server portion of the old 2012 standard server (DC/File/Print) to the new, 2019 server. Would this just…
Editing DHCP Failover results in Access is Denied
I've recently configured DHCP failover to load balance. I'd like to change this to hot standby to reduce complexity with DHCP issues. However, when I try to reconfigure the failover option, I am met with an "Access is Denied" prompt. I have…
Is it possible to have a failover cluster of 3 servers 2022 without the need for other systems?
Hello everyone, for project specifications we will have to use 3 servers to create a failover cluster for the management of a DHCP, these servers will have to be "independent", in the sense that they will not have the possibility to use…
IPAM server access blocked
Hello, I have deployed IPAM to a management server, and am trying to continue with provisioning. My server discovery has completed and found my 3 DCs, 2 of which are DHCP servers. All three show as status blocked though, and I cannot…
migration DHCP failover
Hello, I need to migrate 2 server 2012R2 with DHCP failover role installed to 2 new server 2019. I suppose is it not possible without any downtime because 2019 server will not be able to do failver with 2012r2. I need to stop service, export…
mDNS traffic still present after enabling GPO for Multicast Name Resolution
I've applied a GPO to disable mDNS. I've double-checked the GPO on the local client. The GPO is correct and applied to Computer settings. Turn off smart multi-homed name resolution - enabled Turn off multicast name resolution - enabled I've also…
When will the support for TLS 1.0 and 1.1 be completely disabled?
As a Microsoft partner, we have many customers who - as part of their security initiatives - have scans being performed that are flagging on their "enterpriseenrollment" DNS record, aliased to enterpriseenrollment-s.manage.microsoft.com, as it…
traceroute fails to complete when route includes ntwk.msn.net
traceroute www.paypal-status.com traceroute to www.paypal-status.com (20.69.68.249), 64 hops max, 52 byte packets 1 192.168.1.1 (192.168.1.1) 27.562 ms 1.427 ms 1.127 ms 2 10.61.40.1 (10.61.40.1) 10.975 ms 9.204 ms 8.645 ms 3 …
Win2k16/19 DHCP: Why don't the individual partners in a load balance configuration show their OWN leases, instead of all leases.
It would be really nice to know, in a load balanced DHCP partnering, which server clients actually have their lease with. Guess I'm just venting here, wondering why Microsoft in their wisdom didn't make that distinction. It would be helpful in…
Added new subnet but records are not updated to DNS’s reverse lookup zone
Our old existing network 192.168.3.x (for workstations and servers) DHCP was on Windows Server. Both DNS Forward lookup zone and reverse lookup zone had 192.168.3.x records. New location network Vlan 3, 192.168.3.x (for servers) Vlan 100,…
DNS Delegation is Broken - "double domain"
Hi, When running DCDIAG I can see this error, for a "double domain": DNS Delegation for domain.xyz.uk.domain.xyz.uk is Broken on IP x.x.x.x When I look in the DNS zone domain.xyz.uk, there is no delegation listed for domain.xyz.uk.…
DHCP scope
I'd like to ask if In a DHCP scope an excluded address range does not have to have the same subnet as the scope itself. Is that correct? thank you in advance
When VPN enabled, lost DNS and DCO / Event ID 8015, 334 ...
Hello all, On a Windows Server 2019, when I'm connected on the VPN (IKEV), I lost the connection with local DNS (event ID : 8015). I lost the communication with my DC (event ID : 334, 5719, 1054). Of course when I try to connect on shared folder :…
IPAM High Availability
Hi, I’m currently looking at Microsoft IPAM and cannot find any information on how to provide high availability or fault tolerance should the IPAM server fail. I have asked colleagues and it doesn’t seem that Microsoft IPAM has been deployed in any of…