Is it a Precision problem?  Maybe. Is it a DigiFarm problem?  Maybe. Is it a wide spread problem impacting a large number of users.  No. It seems to only impact users using CaseIH branded NAV controllers and 372 radios.  Other than that there are thousands of Gen3 20/20 systems running flawlessly.  Also, I was not using NTRIP when I encountered the issues with my combine.  I was using Trimble's RTX service, so the issue is not 100% related to DigiFarm.  I was able to correct the issue by using the second port on the 372.  That leads to a potential fix for you but I need to do some research along with getting the firmware versions.  NTRIP is fed on on Port B but the second port is actually two ports combined (Port B and C).  I believe there may be a way to make a cable that would allow DigiFarm to be fed in on Port B and have corrected GPS positions fed out on Port C.