I had the issue indicated in https://forum.navigraph.com/t/i-can-no-longer-log-in-to-simbrief-dispatch-in-msfs-2020/18061/27. The solution allowed me to log on to simbrief in msfs 2020 lobby, but in game on the ois, I still got os error 29 and couldn’t log in. And when the problem was temporarily solved, I had some other error that prevented me from updating the navdata. In dire need of help

Thanks I believe you have reached out to Direct Support as well with this issue so the team is looking into it.

The authentication and log-on is handled directly by the Navigraph WASM which we have incorporated into the A350. So if you are having issues with authentication to Navigraph services, this will happen on the A350 as well as its essentially going through the same backend.

You can try

• Run a VPN to another country to rule out any ISP-related issues
• Run your sim as Admin
• Add Antivirus and Firewall exclusions to sim root directory and community folder

Also to be sure, what is user Windows user name? I have seen users report issues in general with their sims when using "special characters" in this path.

I've also seen users have similar issues when their sim (or Windows User) does not have proper read/write permissions for the AppData directory, as a result addons that write to default paths for "work" folders within the sim (Like Navigraph or A350 WASM for example) cannot function as intended. So you may try to change your UAC settings (or run the sim as admin) to try and alleviate some of these permissions issues.

Thanks!