Citrix XenApp and Windows RDS Licensing Event ID 4105

We have two Citrix XenApp servers – “CTX1” and “CTX2” respectively. On CTX1 we’re seeing Event ID 4105 in the Windows System log. Apparently this error is related to Remote Desktop Services licensing. After digging a little deeper I found that CTX1 is configured as our RDS licensing server. This seems less than ideal, because we have another server, “CTXWeb”, which is handling our Citrix Licensing. It seems like RDS licensing should also be on CTXWeb. So a couple of questions for the experts:

1) Could Event ID 4105 be negatively impacting our Citrix environment? (We’ve had issues with disconnects and sessions freezing the past few months.)

2) Would it be a better scenario if we moved RDS licensing onto CTXWeb where the Citrix licensing also resides? Or should they be on separate servers?

We’ve been trying to get our VPN experience to be as smooth as possible, so any “best practices” you can suggest would be appreciated.
Scott FowlerAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Brian CTXSupportCitrix ConsultantCommented:
Depending on the environment, I install the role on the same server that hosts the Citrix Licensing Service, or on an AD Domain Controller.  If you install the role on a DC, then you won't need to follow the steps in the article.  If you put it anywhere else, you will need to make sure you follow the steps in the article you posted.  I certainly would not install licensing on a Citrix worker server in any case.  CTXWeb sounds like it would be fine.  There's no tie between Citrix Licensing and RDS Licensing, but they won't conflict with each other.  I like the DC option personally since it will be a more permanent solution in the event of Citrix upgrades in the future.
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Dirk KotteSECommented:
great explained by Brian.
the typical error with RDS licensing problems within a Citrix environment occurs not within a working session.
Mostly you see errors like "protocol or driver error" while trying to establish the session.
0
Scott FowlerAuthor Commented:
Per Brian's input we went ahead and installed RDS licensing on the same server as Citrix licensing. After following the instructions in the KB article the 4105 errors ceased.

Thanks for the help!
0
Brian CTXSupportCitrix ConsultantCommented:
Sorry, I glossed over this part of your question:

"1) Could Event ID 4105 be negatively impacting our Citrix environment? (We’ve had issues with disconnects and sessions freezing the past few months."

Licensing wouldn't affect system performance in that way.  It would only prevent a session from being established if a license server couldn't be contacted, and the server is beyond it's 120 day grace period from the time the RDS role was installed.
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Citrix

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.