We are testing a recently built traditional web app, and are experiencing an issue with what appears to be sessions timing out (or just getting lost?). We can be actively working in the application, and then are suddenly logged out. Does anyone have any leads on where start investigating this?

Did u had look into the service center logs

I'd suggest you try this Forge component in order to retrieve your current session timeout and make sure it is not set to a short period.

With this same component you should also be able to set your session timeout to a longer period.

Give it a go and if it can help you figure this thing out.

Regards,

Nordin

If the above does not work for you, you could also have a look at this post and try checking the session timeout value in IIS (if you're on an on-premises environment).

Regards,

Nordin