What’s the uptime on the boxes? We had something like this a while ago, the uptime on our servers was quite high though, we found and installed this https://support.microsoft.com/en-us/kb/2520155
From: [email protected] [mailto:[email protected]] On Behalf Of Russ Sent: 02 May 2016 18:19 To: [email protected] Subject: Re: [NTSysADM] Servers not registering in DNS after reboot We may do something like that - we are looking at putting together a monitor in SCOM which checks and if it notices that a server goes unreachable by name it tries to run a command to register DNS. But it just seems a bit backwards to be "fixing" something rather than preventing. Oh well - just thought someone might have run into a similar issue. Thanks! On Fri, Apr 29, 2016 at 2:11 PM, Charles F Sullivan <[email protected] <mailto:[email protected]> > wrote: As a workaround, you could create a simple batch file with the command to register DNS and add it to a Scheduled Task GPO preference setting. The task could be set to run 5 minutes after startup, or 10 minutes if you think the servers can spare it. Not a solution, but as I said, a workaround. From: [email protected] <mailto:[email protected]> [mailto:[email protected] <mailto:[email protected]> ] On Behalf Of Russ Sent: Friday, April 29, 2016 4:25 PM To: [email protected] <mailto:[email protected]> Subject: [NTSysADM] Servers not registering in DNS after reboot So we have had issues with servers registering properly in DNS after a restart. They seem to deregister as they shut down but then when they come back up, the DNS servers do not have their address again. It doesn't happen every time, or with the same servers every time. The servers are static IP addresses, but register in DNS dynamically. If I find they haven't register, and I manually run ipconfig /registerdns, then everything registers properly and works the way it should. Any ideas? DNS is AD enabled, servers are in the same domain. We have many many more servers which are rebooting and are not having issues dynamically registering, and it's not these particular servers. It just seems that after a monthly patch cycle and reboot we have a handful (or one or two) who lose their DNS. Anyone seen anything like this? We'd rather not have to set all the DNS entries manually.
