Hello,
Just days before El Classico 64bit CW has been implemented on C+ 4k.
It is same story as Sky DE. Disabling crc cw check for caid 1884 is needed on both sides: server and clients.
The question is if admins has physical card or c+ 4k is received thru 3rd party server
If its still in test mode - then i;m afraid they receive it from 3rd party and then their source and every 'middle' server must disable crc check.