OK, inside P3D just after loading OpusFSI I see the window blinking showing that the GRIB data is being downloaded, and then prepared. The third window, so to speak, shows that the current station (the airfield I loaded in the simulator) has "No Data Available At Present". Upon closing this window there's another one, which shows Alt 1, Alt 2, Alt 3 and Alt 4 "Not Specified". Still no LOGs other that FSISERVER.log...
Just to make sure, I don't have antivirus, defenders nor firewalls whatsoever.
When I delete all data from GRIB directory and then check later, I see 3 files, being 2 of them of about 4 MB each.
I got it working. Have you tried installing in a directory with spaces in between (the name)? For example """E:\Simulator Stuff\Utilities\OpusFSI""" Well, that was kinda my case, when I, for testing purposes, eliminated the spaces contained in the PATH chain, the GRIB thing worked great in all its required steps. So, if this is the case, I'd like to suggest that installation path be handled accordingly.
Thanks!