Unable to login to Simlink(Proton)

Hello everybody,
I am currently running Navigraph, VATSIM and MSFS in Proton, which so far works flawlessly. The only problem I have is not being able to sign into Simlink, due to there not being the code-method available for login, and it instead having this weird browser OAuth-kinda login process.

I get that this configuration is probably not officially supported, but I’d personally very much appreciate to get it running. I have now set up my System Handler for navigraph-traffic-desktop to pipe straight into the Simlink exe, but that does not seem to work and it reports the error “Navigraph Simlink is already running on your computer.” When trying to run it without Simlink running, it simply starts Simlink as though it doesn’t take any argument into the executable.

My question would therefore be: Is there any way to maybe set an auth token (or something similar) in a hidden config file somewhere(if so, where is said config file) OR is there a way to actually pipe arguments into Simlink, if so to what executable do I pipe these and what is the syntax for that?

Any help would be greatly appreciated :slight_smile:


To fix the SignIn issue please follow this.

After cleanup please reinstall the Simlink Plugins.

Kind Regards,

Vishal Ahir


I know this is old, but I stumbled upon your post and wondered if you still need help, as I have managed to get Simlink working, and I have written guides myself on getting addons on Proton.