The vendor has published 2 unique mention(s) for this bug: 1. After upgrading Citrix Provisioning Services from version 7.15 LTSR to version 1912 LTSR CU2, the available network interfaces might be missing from the TFTP configuration tool (Tftpcpl.cpl). 2. After upgrading to 1912 CU2, the TFTP control panel does not restart the TFTP service. If you install the Citrix Provisioning server on a system with two NICs, then use the configuration wizard to bind the TFTP service to the other NIC and restart the TFTP service, the service fails to start. Latest urls for this bug: 1. https://docs.citrix.com/us/en/provisioning/1912-ltsr/whats-new/cumulative-update-3/fixed-issues.html 2. https://docs.citrix.com/us/en/provisioning/2106/fixed-issues.html