Citrix LHC not working from NetScaler
Hi,
In my current environment (XenApp 7.17) the Citrix LHC is not working when we try to connect from NetScaler.
I use the OutageModeForced to simulate a DB connection failure on both Delivery Controllers.
When we try to connect from the internal network (directly to StoreFront), it works fine.
But when we try to connect from the NetScaler, we can download the ICA file, but the Citrix Receiver will be stuck at the "Connection in Progress" stage. After a minute or two we will then receive the error: "The published resource is not available currently".
On the StoreFront servers I can see that the XML service is down on one Delivery Controller (which is normal when failing to LHC). I then looked into the ICA file to check that the STA server is matching the elected LHC server (with the remaining active XML service) and that the STA server is listed in the NSGW VIP with a green light.
At this point, I don't know what to investigate next to find why the LHC mode is not working from NetScaler connections. Any help would be very welcome thanks. :)
In my current environment (XenApp 7.17) the Citrix LHC is not working when we try to connect from NetScaler.
I use the OutageModeForced to simulate a DB connection failure on both Delivery Controllers.
When we try to connect from the internal network (directly to StoreFront), it works fine.
But when we try to connect from the NetScaler, we can download the ICA file, but the Citrix Receiver will be stuck at the "Connection in Progress" stage. After a minute or two we will then receive the error: "The published resource is not available currently".
On the StoreFront servers I can see that the XML service is down on one Delivery Controller (which is normal when failing to LHC). I then looked into the ICA file to check that the STA server is matching the elected LHC server (with the remaining active XML service) and that the STA server is listed in the NSGW VIP with a green light.
At this point, I don't know what to investigate next to find why the LHC mode is not working from NetScaler connections. Any help would be very welcome thanks. :)
ASKER
Hello.
Yes we are using LHC (confirmed by running the Get-brokersite cmdlet).
The LHC mode is working fine from the internal network / direct connection to StoreFront.
Yes we are using LHC (confirmed by running the Get-brokersite cmdlet).
The LHC mode is working fine from the internal network / direct connection to StoreFront.
did you already receive the ica file?
that should be the first step after clicking on the icon and thus the connection setup.
Try another brobser (or change zone to untrusted) to see if ica file is downloaded.
Try to switch from "use ddc for loadbalancing" to failover within the ddc konfiguration from storefront.
that should be the first step after clicking on the icon and thus the connection setup.
Try another brobser (or change zone to untrusted) to see if ica file is downloaded.
Try to switch from "use ddc for loadbalancing" to failover within the ddc konfiguration from storefront.
ASKER
Hello. Thank you for your help. Yes the ICA file is downloaded and we receive the correct STA server information in the file.
Hi, Sounds like it gets to the 2nd stage where Gateway attempts to use the contents of the ICA file. Is StoreFront using HTTP/SSL? Do you get the same results for the other Delivery Controller? Do you have cipher policies applied to the servers?
You may want to enable Workspace logging to get some more clues https://support.citrix.com/article/CTX132883
You may want to enable Workspace logging to get some more clues https://support.citrix.com/article/CTX132883
do you check the eventlogs from DDC already?
https://docs.citrix.com/en-us/citrix-virtual-apps-desktops/manage-deployment/local-host-cache.html goto "Monitor"
it is possible to recreate the LHC if necessary
https://blog.citrix24.com/how-to-recreate-xendesktop-7-15-local-host-cache/
something within the Sf event-logs?
https://docs.citrix.com/en-us/citrix-virtual-apps-desktops/manage-deployment/local-host-cache.html goto "Monitor"
it is possible to recreate the LHC if necessary
https://blog.citrix24.com/how-to-recreate-xendesktop-7-15-local-host-cache/
something within the Sf event-logs?
ASKER CERTIFIED SOLUTION
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https://docs.citrix.com/en-us/xenapp-and-xendesktop/7-15-ltsr/manage-deployment/local-host-cache.html
https://docs.citrix.com/en-us/xenapp-and-xendesktop/7-15-ltsr/manage-deployment/connection-leasing.html