I have searched through the first couple of hundred hits on this topic on the Thin List archive and cant find the answers, so hopefully someone here can help. We have a requirement to manage all TS CALS on one pair of W2K3 servers, which will be located at a pair of Data Centres in the Head Office. We have multiple untrusted AD (W2K & W2K3) Domains and several Citrix Farms all connected via various quality WAN links. The TS servers will have the reg key set which points to the License Server. We were previously able to use a W2K License Server to issue TS CALs to clients in multiple untrusted AD Domains. In initial testing with the W2K3 License Server, we have found that it is no longer issuing license across untrusted Domains. There is a KB article that pretty much suggest (in a little foot note) that you should have trusted Domains for this to work on W2K3. Can anyone confirm that for a W2K3 License Server to issue TS CALs to W2K TS clients on another Domain, do you need to have these 2 Domains Trusted? If the Trust is required will it work as an Inter Forest Trust and can it just be in one direction? Secondly are there any known logon latency issues with having your W2K3 TS Licensing Server located at the far end of a WAN link from your client W2K TS? For some reason I have this nagging thought that when a user logs into a remote W2K TS and obtains a license from the Licencing server located a couple of thousand Km away that there will be added delay to the logon process. And if this is the case, will the delay still occur even after the client has received a permanent CAL? Martin. ******************************************************** This Weeks Sponsor Activaeon.com Reduce licensing costs with activAeon XA and get one month completely free. http://www.activaeon.com ********************************************************** Useful Thin Client Computing Links are available at: http://thin.net/links.cfm ThinWiki community http://www.thinwiki.com *********************************************************** For Archives, to Unsubscribe, Subscribe or set Digest or Vacation mode use the below link: http://thin.net/citrixlist.cfm