isGlobalCatalogReady False - Global Catalog - Active Directory

-

In this post, I describe how to fix the issue whereby a server that has been configured to be a Global Catlog shows isGlobalCatalogReady: FALSE.  You can check this in ldp.exe:

Screenshot showing isGlobalCatalogReady: FALSE

The server has been configured as a Global Catalog in NTDS Settings in Active Directory Sites and Services:

Screenshot of Global Catalog checkbox checked in NTDS Settings Properties

Cause

In my case, the server was not Global Catalog ready because of a replication issue.

There are several ways to diagnose this e.g. by running the following in a command prompt:

- dcdiag

- REPADMIN /REPLSUM

- REPADMIN /SHOWREPS

- REPADMIN /SHOWREPL

You can also look in the Directory Services event log.

The local domain controller has been selected to be a global catalog. However, the domain controller does not host a read-only replica of the following directory partition.

Screenshot of "The local domain controller has been selected to be a global catalog. However, the domain controller does not host a read-only replica of the following directory partition. "

The following error occurs when I try to replicate in Sites and Services:

The DSA operation is unable to proceed because of a DNS lookup failure.

Screenshot of "The DSA operation is unable to proceed because of a DNS lookup failure"

Resolution

To resolve the issue, I configured DNS on the server I wanted to be a Global Catalog to the server I was unable to replicate with (in this case TREE-TEST-2K22).

Screenshot of DNS server settings

I was then able to replicate successfully.

Screenshot showing a successful replication

isGlobalCatalogReady then became TRUE:

Screenshot showing isGlobalCatalogReady: TRUE

Comments

Post a Comment

Popular posts from this blog

LG TV This app will now restart to free up more memory

-
Image
This post describes how to fix the error "This app will now restart to free up more memory" which can occur when using apps such as Netflix on an LG TV after just a few minutes of use. Resolution To resolve the issue, unplug the TV then press the on/off button for 10 seconds.  Wait a further 20 seconds then plug the TV back in and turn it back on. Apps should now run without the error. Edit: The on/off button on my LG TV is directly under the standby light on the bottom of the TV. Edit: I didn't have to do this myself but one person who has left a comment said that clearing all browsing data worked for them.  I have written a post explaining how to do this: LG TV Clear All Browsing History Data . Edit: A few other people have also suggested turning off quick start in settings (and if it's already off, turn it on then off again).  I have written a post explaining how to do this: LG TV turn off Quick Start in settings Related Posts -  LG TV delete/remove/hide ch
Read more

LG TV Clear All Browsing History Data

-
Image
This post describes how to clear all browsing history data from an LG TV. This is one way to resolve the error " This app will now restart to free up more memory " sometimes seen on LG TVs. Process The process to clear all browsing history data is as follows: 1. Press the Home button on the remote control and keep pressing right until you find the Web Browser then open it. 2. Scroll the wheel on the remote control to reveal the pointer on screen, then press the three dots stacked vertically (located in the top right of the screen, next to the close button) to open the Menu. 3. Select Settings from the Menu. 4. Scroll to the bottom of the Settings to reach the Clear Browsing Data section. 5. Press the Clear All Browsing Data button then press Yes to confirm. Related Posts -  LG TV turn off Quick Start in settings -  LG TV move or delete apps and shortcuts on home screen
Read more

LG TV turn off Quick Start in settings

-
Image
This post describes how to turn off Quick Start on an LG TV. This is one way to resolve the error " This app will now restart to free up more memory " sometimes seen on LG TVs. Process The process to turn off Quick Start on my LG TV is as follows: 1. Press the Settings (cog icon) on the remote control, this opens the side settings menu on the right hand side of the TV screen. 2. Go down to All Settings (the three dots icon that turns into a cog icon on the screen) then click. 3. Go down until you reach General (the cog and spanner icon) 4. Press right then down until you reach Quick Start+ (note: you may need to select Additional Settings before doing this on some LG TVs). 5. Toggle Quick Start+ to the off position (the circle should slide to the left): Related Posts -  LG TV Clear All Browsing History Data -  LG TV move or delete apps and shortcuts on home screen
Read more