Simlink will sign me out without any intervention on my part. Second day in a row where in the middle of a flight it just randomly logs me out requiring me to sign back into my Navigraph account.
Lets do a reset.
In Navigraph Simlink Plugin Settings, for your FS entry press Uninstall Simlink.
Please use specifically Windows Programs and Features to uninstall Simlink:
If they exist, delete directories:
Then download and install latest Simlink .
Please let us know how you get on.