Virtual machine shows unregistered in Citrix Director.

I am new to this and I cannot figure out the life for me why this virtual is coming up as unregistered. I followed our KB - reinstalled VDA 7.6 rebooted and still nothing. Any experts in this area?
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Edward PamiasTeam Lead RRS DeskAsked:
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Zaheer IqbalTechnical Assurance & ImplementationCommented:
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Zaheer IqbalTechnical Assurance & ImplementationCommented:
Can the VM communicate with the Domain ?
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Edward PamiasTeam Lead RRS DeskAuthor Commented:
yes it can but we get these issue with a number of the machines. Sometimes forcing a shutdown from director fixes it. Or we have to reinstall VDA and that fixes it. Then after a while they unregister again. I have a feeling its a bigger issue but our team that does the support says no.
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Brian MurphyIT ArchitectCommented:
If you think there are several issues going on I would start with Scout (native installed).

Create a support bundle and upload it to your dedicated portal (cis.citrix.com) which is moving, however, to https://smart.cloud.com/ 

I say however, because Smart Check is still Preview.

No charge with Software Assurance customers.

Adding a Site requires agent install.  Download the agent, install.  All traffic is HTTPS.  Receive email alerts.  

Much easier than Scout and CIS.

Quick overview
https://www.youtube.com/watch?v=RUTL1X_nBSg

If this is not an option for you, I recommend updating a Workstation or can be run on the Site Controller.  If you run on Site Controller you don't have to upgrade WMF, install Citrix POSH, and so forth but I prefer remote reporting.

I would take a look at this PowerShell health script.  It has two parts.  XML and PS1 file.  

I produces a nice HTML report that checks all the services and a few other things across the farm including PVS cache disk size and so forth.

Unregistered VM's can be many things.

This tool right here, checks specific for VDA Issues
https://support.citrix.com/article/CTX207624

Here is a decent checklist of items that you can use to retrofit the PowerShell script above.

Also, if you are using PVS you need to look at other things versus MCS so would be interested in what you are using.

The list is pretty long.  I would start with, for example:

Is the subnet allocated to VDA's defined correctly in AD Sites and Services?  As in does the subnet and mask exist, and correct, and associated to the right site, and does the "Reverse" (PTR) zone in DNS exist.

Assuming the DNS zone is the same as the AD forest/domain?

Is that set properly, is DHCP correct.

If you have SA on licensing start with the Smart Check, download the PowerShelll and XML file.
The parameters are in the XML file.  
They must reside in the same directory
Example:  SiteCollector1, C:\Posh\Health\

https://github.com/sacha81/XA-and-XD-HealthCheck
For the full XML File, use this link
https://github.com/sacha81/XA-and-XD-HealthCheck/blob/0fbaf81eb2797c3b846435b650457b9db7531552/XA-and-XD-HealthCheck_Parameters.xml

Copy and paste the contents in to Notepad++ or your preferred POSH editor.  I like Sapien as well.

Notice the parameters....Controllers by default is localhost.  So if you run it from Site Controller you don't need to change.  If you run from workstation I recommend upgrading WMF to 5.1 and you must download the Citrix POSH/SDK Kit for remote admin and if memory serves the PowerShell modules you need are on the ISO (in the ISO)(exploded ZIP, so forth) - and must use the one that matches your version and any upgrades/patches where that might have been updated.  Or, run on Site Controller.  In your Test environment.  Never run anything in Production until vetted in test/development.  On 2000 XenApp VDA's for example it takes 40 minutes to run.  

Everything you need is in the notes of the script itself.



PVS Script must be run from PVS
http://blog.sachathomet.ch/2014/08/31/citrix-pvs-healthcheck/
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Edward PamiasTeam Lead RRS DeskAuthor Commented:
I will pass this along. For now I will close the question and accept the above as the answers. If anything else pops up I will ask another question. Thanks for the assistance.
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Edward PamiasTeam Lead RRS DeskAuthor Commented:
Thank gentlemen!
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Zaheer IqbalTechnical Assurance & ImplementationCommented:
Thanks for the points ;)
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