Im running Windows 10
Rudder pedals are both CH products
Using a powered usb hub plugged into front port on PC
In device manager usb power turn off option is turned off
Calibrating stick sometimes will seem to help a few take offs sometimes not
CH sucks, ask me how I know..... I have a couple sets in the closet you can have cheap.
Joking aside, CH is old tech. They use potentiometers and ones that don't cover that wide a range. The software hasn't been updated in years.
In the search bar bottom left of the screen type in "game controllers". Top option should be something like USB and game controllers" of something like that. Click that and it should open the old "game controllers" window with the list of your controllers. Click on the CH rudders and then click "properties" which will open the test/calibrate window. If you made it this far then windows can see the controller.
On the other hand if you still cant see the controller in the list the computer isn't seeing the pedals. If the computer doesn't see the pedals, then either your USB hub is bad or the connection is bad. Do you plug and unplug your controls often? When you finish playing do you unplug them and put your controllers in a draw/closet/under the desk? If so the plugs may be worn out and lose connection causing the issue.
Like SIK said, try another hub or if you dont have one try plugin in the back of the computer for a bit and see if the issue disappears. That front plug may be junk.