Setting multiple ADs in PrefferedDC RRS feed

  • Question

  •  Hi

     We're having some trouble at a site where there are many DomainControllers and only some of the are RW.  So to have CRM work fine we had to set the Domain Controller to use using the PreferredDC-key in the registry. Now when that AD fails the CRM installation grinds to a halt that would be avoidable if :

    1.   CRM would actually support RO-AD controllers (this is the preffered method)
    2. We could set a list of controllers in the registry to use

     Is #2 possible? Can I set a list of domaincontrollers to use using some syntax or can we set just 1?


    Wednesday, June 12, 2013 8:45 AM

All replies

  • hi Kjell,

    CRM does support RO DC's however if you need to write to AD e.g. creating users, then wouldn't work.

    For option 2 to work, what you need to do is to work with AD sites and services, you need to make sure CRM is hosted in a SITE that contains a number of DC's for redundancy. CRM finds the DC's querying DNS for SRV (DCs) records on their SITE first. If you have SRV records on the site, DNS will return those and here you get CRM working with those DC's first.

    I have blogged not specifically about this on the below post but here is a post which may help:


    Visit my blog for CRM material, improving performance, kerberos, IFD, development tips, etc. :) http://quantusdynamics.blogspot.com

    • Edited by nrodriEditor Wednesday, June 12, 2013 3:04 PM
    • Proposed as answer by nrodriEditor Wednesday, June 26, 2013 3:26 PM
    Wednesday, June 12, 2013 3:04 PM