I am connecting 0ACST052.1 to another 802.1AS-2020 implementation.
One time domain configuration is OK as long as domain number is 0.
Two time domains configuration is not working.
My initial analysis is the 0ACST052.1 does not respond to Common Mean Link Delay Service (CMLDS) peer delay request messages. Can you confirm 0ACST052.1 does not support CMLDS?
unfortunately, it seems that in the current firmware of the 0ACST052.1, the CMLDS functionality was ignored/overseen, when the time sync stack was updated from the older 802.1AS-2011 (IEEE 1588-2008) version.
A future firmware will include CMLDS peer delay messages.