Web Control on Cloned virtual machines

Hi to all,

i'm work everyday with Citrix VDI environment and with its cloning technologies (called MCS).

On last customer we activated the Full Web Control feature that connect "endpoint" to Web Appliance.

We always followed the article https://www.sophos.com/en-us/support/knowledgebase/12561.aspx and create a script that seals the Master Image.

With this customer, we found that the Web Appliance reports that every machines, deployed from master image, has same id, It should happen when you do not delete "EndpointID" under HKEY_LOCAL_MACHINE\SOFTWARE\[Wow6432Node]\Sophos\Web Intelligence\Web Control\ . We sure that the string was deleted before running the seal, but on deployed VMs the new value of EndpointID seems to be the same on all of them.

Do you have any idea to fix this issue?

Thanks

-Davide S.-