Forum Discussion
Jim_Mason
Mar 28, 2020Copper Contributor
Issue with duplicate DNS fix when DC's mix uppercase/lowercase
So, in a recent KB fix included in:
https://support.microsoft.com/en-au/help/4541329/windows-10-update-kb4541329
It is supposed to solve:
Addresses an issue that might cause domain controllers (DC) to register a lowercase and a mixed or all uppercase Domain Name System (DNS) service (SRV) record in the _MSDCS.<forest root domain> DNS zone. This occurs when DC computer names contain one or more uppercase characters.
Here's an issue I have been running into however. This worked well on one of my DC's, the PDC, which does not do any automatic updates. However, I think this fix is left OUT of the April cumulative update, which is a problem.
It seems like this was an addendum to the March cumulative update, so it will not be installed if that cumulative update is. Then, when the April update is installed, you end up with a problem.
You can't install the prior update due to it now being "Not Applicable" since a more recent cumulative update exists. I have tried removing the April update, but still having an issue. Working on removing some other more recent updates as well.
Can anyone from MS confirm whether or not this particular fix is included in the April cumulative update, or if it was left out mistakenly? Right now the domain is fine, but I would like to get this fix in place on all the DC's running DNS, not just the PDC.
Will update if I am able to manually install the update that contains the fix after some more update roll backs.
Thanks!
Ok, looks like an almost year old cumulative update. May want to get current by installing the latest SSU
https://www.catalog.update.microsoft.com/Search.aspx?q=KB4540723
followed by the latest cummulative update.
https://www.catalog.update.microsoft.com/Search.aspx?q=KB4541329
Not sure where you got an April update as that has not been released (at least publicly) as yet. If you think this is a bug you can report here and no charge will be incurred..
https://support.microsoft.com/en-us/hub/4343728/support-for-business
Ok, looks like an almost year old cumulative update. May want to get current by installing the latest SSU
https://www.catalog.update.microsoft.com/Search.aspx?q=KB4540723
followed by the latest cummulative update.
https://www.catalog.update.microsoft.com/Search.aspx?q=KB4541329