Ref: Hauppauge WinTV-QuadHD tuner issue with MC 25.
After a lot of communications with Microsoft and Hauppauge, the issue where running J River MC 25 has the lack of being unable to view live TV channels continues under Microsoft's 1903 update to Windows 10. I have faithfully updated all the affected software from all three companies to see if the issue was fixed through some update. I have tested on several different PCs.
I still get "waiting for signal lock" followed by "no signal" when I try to access any channel. If I reinstall MC 25 fresh, I can't find any channels over the air (ATSC) during the set up channel scan.
So, until something causes this issue to be fixed, I will be using Hauppauge WinTV 8.5 and NextPVR 4.2.4 applications. Now, MC 25 only has audio use for me as TV is completely nonfunctional as described above. So, three companies, Microsoft, Hauppauge, and J River, and the interplay between their software has resulted in this problem where all three companies do not feel their software caused the issue. Due to this, I'm out of ideas and attempts to investigate.