Log in window keeps presenting itself even though put in username/password repeatedly

i’m trying to sort out incoming mail server problem and when I hit the Test Settings link, I get the Log In window because my session has expired.

I put in my username/password, click Log In. The window disappears.

But when I click Test Settings again in Incoming Email window accessed through my profile the same session expired message appears.

this happens repeatedly without any indication of why it doesn’t work.

using SuiteCRM 7.9.4

You should have some indication in your logs about what went wrong. I’ve seen other people with this error, but I don’t recall if/how they solved it…