For those hams having decode problems in FT8 (or any other digital mode), I find that Meinberg works very well.
Just be sure to turn off Microsoft’s time setting.
Window 7/64 Ultimate:
Right click on the time display in the lower right corner of your screen
Left click on Adjust date/time
Select Internet Time
Select Change settings…
Uncheck Synchronize with an Internet time server
Download and install Meinberg
When you get to Configuration File Settings
Check Create an initial configuration file with the following settings:
Want to use predefined public NTP servers (see www.pool.ntp.org)? Choose
Select North America
Check Use SYSTEM account
Close out Meinberg
On the internet go to https://time.is
This will check you computer clock.
de Paul, W8AEF